Moving textures out of figures directory (KhronosGroup#391)

* moving textures out of figures

* update sample image directory in manifest files

* updates for powershell script

Author: kcoley

Output/Buffer_Interleaved/Buffer_Interleaved_00.gltf

@@ -70,7 +70,7 @@
   ],
   "images": [
     {
-      "uri": "Figures/Textures/BaseColor_Grey.png"
+      "uri": "Textures/BaseColor_Grey.png"
     }
   ],
   "materials": [

Output/Buffer_Interleaved/Buffer_Interleaved_01.gltf

@@ -71,7 +71,7 @@
   ],
   "images": [
     {
-      "uri": "Figures/Textures/BaseColor_Grey.png"
+      "uri": "Textures/BaseColor_Grey.png"
     }
   ],
   "materials": [

Output/Buffer_Interleaved/Buffer_Interleaved_02.gltf

@@ -71,7 +71,7 @@
   ],
   "images": [
     {
-      "uri": "Figures/Textures/BaseColor_Grey.png"
+      "uri": "Textures/BaseColor_Grey.png"
     }
   ],
   "materials": [

Output/Buffer_Interleaved/Buffer_Interleaved_03.gltf

@@ -71,7 +71,7 @@
   ],
   "images": [
     {
-      "uri": "Figures/Textures/BaseColor_Grey.png"
+      "uri": "Textures/BaseColor_Grey.png"
     }
   ],
   "materials": [

Output/Buffer_Interleaved/Buffer_Interleaved_04.gltf

@@ -71,7 +71,7 @@
   ],
   "images": [
     {
-      "uri": "Figures/Textures/BaseColor_Grey.png"
+      "uri": "Textures/BaseColor_Grey.png"
     }
   ],
   "materials": [

Output/Buffer_Interleaved/Figures/SampleImages/Buffer_Interleaved_00.png

@@ -3,7 +3,7 @@
   "models": [
     {
       "fileName": "Buffer_Interleaved_00.gltf",
-      "sampleImageName": "SampleImages/Buffer_Interleaved_00.png",
+      "sampleImageName": "Figures/SampleImages/Buffer_Interleaved_00.png",
       "camera": {
         "translation": [
           0.0,
@@ -14,7 +14,7 @@
     },
     {
       "fileName": "Buffer_Interleaved_01.gltf",
-      "sampleImageName": "SampleImages/Buffer_Interleaved_01.png",
+      "sampleImageName": "Figures/SampleImages/Buffer_Interleaved_01.png",
       "camera": {
         "translation": [
           0.0,
@@ -25,7 +25,7 @@
     },
     {
       "fileName": "Buffer_Interleaved_02.gltf",
-      "sampleImageName": "SampleImages/Buffer_Interleaved_02.png",
+      "sampleImageName": "Figures/SampleImages/Buffer_Interleaved_02.png",
       "camera": {
         "translation": [
           0.0,
@@ -36,7 +36,7 @@
     },
     {
       "fileName": "Buffer_Interleaved_03.gltf",
-      "sampleImageName": "SampleImages/Buffer_Interleaved_03.png",
+      "sampleImageName": "Figures/SampleImages/Buffer_Interleaved_03.png",
       "camera": {
         "translation": [
           0.0,
@@ -47,7 +47,7 @@
     },
     {
       "fileName": "Buffer_Interleaved_04.gltf",
-      "sampleImageName": "SampleImages/Buffer_Interleaved_04.png",
+      "sampleImageName": "Figures/SampleImages/Buffer_Interleaved_04.png",
       "camera": {
         "translation": [
           0.0,

Output/Buffer_Interleaved/Figures/SampleImages/Buffer_Interleaved_01.png

@@ -6,7 +6,7 @@ The following table shows the properties that are set for every model.
 
 | Property | **Values** |
 | :---: | :---: |
-| Base Color Texture | [<img src="Figures/Thumbnails/BaseColor_Grey.png" align="middle">](Figures/Textures/BaseColor_Grey.png) |
+| Base Color Texture | [<img src="Figures/Thumbnails/BaseColor_Grey.png" align="middle">](Textures/BaseColor_Grey.png) |
 
 
 The following table shows the properties that are set for a given model.