add new rule for eupl license

Reference: #4203
Signed-off-by: Alok Kumar <[email protected]>

Author: alok1304

src/licensedcode/data/rules/eupl-1.0_14.RULE

@@ -0,0 +1,7 @@
+---
+license_expression: eupl-1.0
+is_license_reference: yes
+relevance: 100
+---
+
+European Union Public Licence V.1.0 

src/licensedcode/data/rules/eupl-1.1_27.RULE

@@ -0,0 +1,7 @@
+---
+license_expression: eupl-1.1
+is_license_reference: yes
+relevance: 100
+---
+
+European Union Public Licence V. 1.1

src/licensedcode/data/rules/eupl-1.2_37.RULE

@@ -0,0 +1,7 @@
+---
+license_expression: eupl-1.2
+is_license_reference: yes
+relevance: 100
+---
+
+EUROPEAN UNION PUBLIC LICENCE v. 1.2