Update .gitignore file (sonic-net#86)

- Add entries to ignore files generated when building Python 2 and 3 wheel packages of the daemons
- Ignore 'thermalctldc' file
- Organize alphabetically

Author: jleveque

.gitignore

@@ -1,7 +1,12 @@
-*/deb_dist/
-*/dist/
+*.pyc
+*/*.egg-info/
 */*.tar.gz
-*/*.egg-info
 */.cache/
-*.pyc
+*/.eggs/
 */__pycache__/
+*/build/
+*/deb_dist/
+*/dist/
+
+# Compiled code which doesn't end in '.pyc'
+sonic-thermalctld/scripts/thermalctldc