add git commit template (#16)

tomerd · artemredkin · commit cab30f9f4933 · 2019-04-19T00:20:06.000+01:00
motivation: missing the template mentioned in the contribution guides

changes:
* add dev directory with the git commit template
* generate contributors list
diff --git a/.mailmap b/.mailmap
@@ -1 +1 @@
-
+Artem Redkin <aredkin@apple.com> <artem@redkin.me>
diff --git a/CONTRIBUTORS.txt b/CONTRIBUTORS.txt
@@ -12,6 +12,9 @@ needs to be listed here.
 ### Contributors
 
 - Artem Redkin <aredkin@apple.com>
+- Ian Partridge <i.partridge@uk.ibm.com>
+- Tanner <me@tanner.xyz>
+- tomer doron <tomer@apple.com>
 
 **Updating this list**
 
diff --git a/dev/git.commit.template b/dev/git.commit.template
@@ -0,0 +1,14 @@
+One line description of your change
+
+Motivation:
+
+Explain here the context, and why you're making that change.
+What is the problem you're trying to solve.
+
+Modifications:
+
+Describe the modifications you've done.
+
+Result:
+
+After your change, what will change.

Original file line number	Diff line number	Diff line change
`@@ -1 +1 @@`
`1`		`-`
	`1`	`+Artem Redkin <aredkin@apple.com> <artem@redkin.me>`