Adds CodexSearchCommand
Adds Search in Codex documentation.
Adds OpenBrowser requirement to Docs.
Adds Search in Codex feature to Readme.
Merges branch 'feature/add-search-in-codex' into develop
Updates changelog for 0.1.3
Bumps version to 0.1.3
Build 0.1.3
Merges branch 'release/0.1.3' into develop