moving CONTRIBUTING.md to github folder and creating some templades

.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,22 @@
+### Expected Behavior
+
+{Please write here}
+
+### Actual Behavior
+
+{Please write here}
+
+### Steps to Reproduce (including precondition)
+
+{Please write here}
+
+### Screenshot on This Problem (if possible)
+
+{Please write here}
+
+### Your Environment
+
+- OS: {Please write here}
+- nipe version: {Please write here}
+
+

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,17 @@
+### What was a problem?
+
+{Please write here}
+
+### How this PR fixes the problem?
+
+{Please write here}
+
+### Check lists (check `x` in `[ ]` of list items)
+
+- [ ] Test passed (soon)
+- [ ] Coding style (indentation, etc)
+
+### Additional Comments (if any)
+
+{Please write here}
+