Added .gitignore for __pycache__ and pyc files to the python tool gemplate.

Signed-off-by: Chris Galvan <chgalvan@amazon.com>

Templates/PythonToolGem/Template/.gitignore

@@ -0,0 +1,2 @@
+__pycache__/
+*.pyc

Templates/PythonToolGem/template.json

@@ -12,6 +12,12 @@
     ],
     "icon_path": "preview.png",
     "copyFiles": [
+        {
+            "file": ".gitignore",
+            "origin": ".gitignore",
+            "isTemplated": false,
+            "isOptional": false
+        },
         {
             "file": "CMakeLists.txt",
             "origin": "CMakeLists.txt",