Wrapper around icdiff to easily install as a antigen bundle:
antigen bundle desyncr/zsh-icdiff
This will install the bundle as well as icdiff from jeffkaufman/icdiff.
By default it'll autoconfigure icdiff as a git difftool.
You should be able to call icdiff function from anywhere.
`ICDIFF_OPTIONS`: Options passed to `icdiff` tool
`ICDIFF_PLUGIN_GIT_DIFFTOOL`: Whether to auto configure git to use `icdiff` as diff tool