Proposal template (#1905)

Signed-off-by: John Barker <[email protected]>

.github/ISSUE_TEMPLATE/proposal.md

@@ -0,0 +1,59 @@
+---
+name: Proposal
+about: Suggest an large change for the Molecule project
+labels: proposal 
+---
+
+
+# Proposal: <proposal name>
+
+*Author*: Your Name <@yourGitHufid> IRC: handle (if different)
+
+*Date*: 2019-MM-DD
+
+- Status: New
+- Proposal type: (core design, process, ?)
+- Estimated time to implement: <X days, weeks, etc.>
+
+
+## Motivation
+
+Describe the reasons for this proposal.
+
+### Problems
+
+What problems exist that this proposal will solve?
+- Problem #1
+- Problem #2
+- Or just describe the problem if there is just one.
+
+## Solution proposal
+
+- Describe your suggested solution here.
+- Insert code in snippets if you would like as shown.
+```yaml
+    - include: main.yml
+      vars:
+         var1: val1
+```
+- Be sure to explain how this solves problems.
+
+## Dependencies (optional)
+
+Explain any dependencies. This section is optional but could be helpful.
+- Dependency #1
+- Dependency #2
+
+## Testing (optional)
+
+Does / should this require testing, and if so, how? Describe here. This section is optional but could be helpful.
+
+## Documentation (optional)
+
+Does / should this require documentation? If so, describe here. This section is optional but could be helpful.
+
+## Anything else?
+
+If you'd like to add anything else beyond the above required and optional sections, you are welcome to do so.
+
+