[COMPLIANCE] Add copyright and license headers (#327)

* add copywrite changes

* extra slash

* [COMPLIANCE] Add copyright and license headers

* removed incorrect license

* reverted /dist

* add action.yml to copywrite ignore

* revert

* remove dist changes

* revert dist

.copywrite.hcl

@@ -0,0 +1,30 @@
+schema_version = 1
+
+project {
+  license        = "MPL-2.0"
+  copyright_year = 2020
+
+  header_ignore = [
+    # changie tooling configuration and CHANGELOG entries (prose)
+    ".changes/unreleased/*.yaml",
+    ".changie.yaml",
+
+    # GitHub issue template configuration
+    ".github/ISSUE_TEMPLATE/*.yml",
+
+    # GitHub Actions workflow-specific configurations
+    ".github/labeler-*.yml",
+
+    # Github Action linting configuration
+    ".github/actionlint.yaml",
+
+    # Release Engineering tooling configuration
+    ".release/*.hcl",
+
+    # Auto-generated /dist
+    "dist/**",
+
+    # GitHub Action metadata file
+    "action.yml",
+  ]
+}