[PathKit] Move from experimental to modules

Add in Code of Conduct and Contributing.md as well.

Docs-Preview: https://skia.org/?cl=150901
Bug: skia:8216
Change-Id: Ia881124f653617ad0b7b91f40ba21de2c13220a6
Reviewed-on: https://skia-review.googlesource.com/150901
Reviewed-by: Joe Gregorio <jcgregorio@google.com>
diff --git a/infra/bots/recipes/test_pathkit.py b/infra/bots/recipes/test_pathkit.py
index fdb27cf..b153ca0 100644
--- a/infra/bots/recipes/test_pathkit.py
+++ b/infra/bots/recipes/test_pathkit.py
@@ -32,10 +32,10 @@
 
   # The karma script is configured to look in ./npm-(asmjs|wasm)/bin/test/ for
   # the test files to load, so we must copy them there (see Set up for docker).
-  copy_dest = checkout_root.join('skia', 'experimental', 'pathkit',
+  copy_dest = checkout_root.join('skia', 'modules', 'pathkit',
                         'npm-wasm', 'bin', 'test')
   if 'asmjs' in api.vars.builder_name:
-    copy_dest = checkout_root.join('skia', 'experimental', 'pathkit',
+    copy_dest = checkout_root.join('skia', 'modules', 'pathkit',
                         'npm-asmjs', 'bin', 'test')
 
   base_dir = api.vars.build_dir
@@ -75,7 +75,7 @@
     raise
 
 # Copy binaries (pathkit.js and pathkit.wasm) to where the karma tests
-# expect them ($SKIA_ROOT/experimental/pathkit/npm-wasm/test/)
+# expect them ($SKIA_ROOT/modules/pathkit/npm-wasm/test/)
 dest = os.path.join(copy_dest, 'pathkit.js')
 shutil.copyfile(os.path.join(base_dir, 'pathkit.js'), dest)
 os.chmod(dest, 0o644) # important, otherwise non-privileged docker can't read.