feat(examples): add mason realm to examples + md project (#3726)

Hi I'm putting this here so I can be added into the examples folder. I
will also be making a md implementation that's slightly different than
moul and sunspirits but in the same spirit as them.

examples/gno.land/p/mason/md/gno.mod

@@ -0,0 +1 @@
+module gno.land/p/mason/md

examples/gno.land/p/mason/md/md.gno

@@ -0,0 +1,48 @@
+package md
+
+import (
+	"strings"
+)
+
+type MD struct {
+	elements []string
+}
+
+func New() *MD {
+	return &MD{elements: []string{}}
+}
+
+func (m *MD) H1(text string) {
+	m.elements = append(m.elements, "# "+text)
+}
+
+func (m *MD) H3(text string) {
+	m.elements = append(m.elements, "### "+text)
+}
+
+func (m *MD) P(text string) {
+	m.elements = append(m.elements, text)
+}
+
+func (m *MD) Code(text string) {
+	m.elements = append(m.elements, "  ```\n"+text+"\n```\n")
+}
+
+func (m *MD) Im(path string, caption string) {
+	m.elements = append(m.elements, "!["+caption+"]("+path+" \""+caption+"\")")
+}
+
+func (m *MD) Bullet(point string) {
+	m.elements = append(m.elements, "- "+point)
+}
+
+func Link(text, url string, title ...string) string {
+	if len(title) > 0 && title[0] != "" {
+		return "[" + text + "](" + url + " \"" + title[0] + "\")"
+	}
+	return "[" + text + "](" + url + ")"
+}
+
+func (m *MD) Render() string {
+	return strings.Join(m.elements, "\n\n")
+}

examples/gno.land/r/mason/home/gno.mod

@@ -0,0 +1 @@
+module gno.land/r/mason/home

examples/gno.land/r/mason/home/home.gno

@@ -0,0 +1,77 @@
+package home
+
+import (
+	"gno.land/p/mason/md"
+)
+
+const (
+	gnomeArt1 = `   /\
+                  /  \
+                  ,,,,,
+                  (o.o)
+                  (\_/)
+                  -"-"-`
+	dgnonut = `
+                        #$$$$$$$$*                         
+                     #$$@@@@@@@@@@$$$#                      
+                   #$$@@@@@@@@@@@@@$$$$#                    
+                 #$$$@@@@$$$$$$$$$$$$$$$$*                  
+                #$$$$$$$$$$$$$$$$$$$$$$$$$#!                
+               #$$$$$$$$$############$$$$$##*               
+             !##$$$$$$####**********#####$###*              
+            =##$$$$$###****!!!!!!!!!***######*!             
+            *##$$$###***!!!!!!==!!!!!!**######*=            
+           !*#######***!!!=;;;;;====!!!!**####**            
+          !*#######**!!!==;;::::::;;==!!!**###**!           
+          !*######***!==;::~~~~~~:::;;=!!!***#***=          
+         =**#####**!!==;::~-,,,,,--~:;;=!!!******!          
+         !**####***!==;:~-,..  ..,,-~:;==!!******!;         
+        ;!**###***!!=;:~-,.       ..-~:;==!!*****!=         
+        =!*******!!==::-.          .,-::==!!*****!=         
+        =!*******!!=;:~,            .-~:;=!!!****!=:        
+       ~=!*******!==;:-.            .,-:;=!!!****!=;        
+       :=!*******!==;~,.             ,-:;==!!!***!=;        
+       :=!******!!==:~,              ,-:;=!!!***!!=;        
+       :=!!*****!!=;:~,              ,~:;=!!****!!=;-       
+       :=!!!****!!==;~,              -~;==!!****!!=;-       
+       :;=!!*****!!=;:-              -:;=!!*****!!=:-       
+       ~;=!!!****!!==;~              :;=!!*****!!!;:-       
+       ~;==!!****!!!==:              ;=!!******!!=;:,       
+       ~:==!!!****!!!=;~            :=!********!!=;:.       
+       -:;==!!*****!!!!;            =!*********!==;:        
+       ,~;==!!*******!!==          =**#####****!==:~        
+       ,~:;=!!!!*********!        **#######***!!=;~-        
+        -~;;=!!!!**********!    *##$$$$$###***!!=:~.        
+        ,~:;==!!!****##########$$$$$$$$###****!=;:~         
+         -~:;==!!!***####$$$$$$@@@@@$$$###**!!=;:~,         
+         ,-~:;=!!!***####$$$$@@@@@@$$$$##**!!!=;:-.         
+          -~:;;=!!!***###$$$$$@@@@$$$$##***!!=;:-.          
+          .-~:;;=!!!***###$$$$$$$$$$$##***!==;:~-           
+           .-~:;==!!!!**####$$$$$$$###**!!==;:~-            
+            ,-~::;==!!!!***########****!!==;:~-.            
+             ,-~:;;==!!!!!***********!!!==;:~,.             
+              ,,~~::;====!!!!!!!!!!!!!==;::~,.              
+               .,-~::;;;===!!!!!!!!===;::~-,.               
+                 ,--~~:;;;;========;;::~--.                 
+                  .,,-~~:::::::::::~~~-,,.                  
+                    ..,---~~~~~~~~~--,..                    
+                       ..,,,,,,,,,...                       
+                             ...`
+)
+
+func Render(path string) string {
+	home := md.New()
+	home.H1("Mason's Realm")
+
+	home.Im("https://cdn.esawebb.org/archives/images/screen/weic2428a.jpg", "Placeholder")
+	home.P("Welcome to my realm. " + md.Link("github", "https://github.com/masonmcbride"))
+
+	home.H3("Dgnonut")
+	home.Code(dgnonut)
+
+	home.H3("More")
+	home.Code(gnomeArt1)
+	home.Bullet("Credit to " + md.Link("JJOptimist", "https://gno.land/r/jjoptimist/home") + " for this gnome art.")
+	home.Bullet("I'm testing out my markdown system.")
+	return home.Render()
+}