Create docc repo and publish Wallet Core swift docc

[hewigovens]

Todo:

• [x] Create docc repo under Trust
• [ ] Create main and gh-pages branch
• [ ] Add GitHub Action
• • [ ] manual dispatch action (tag name)
• • [ ] pull tag and process it
• • [ ] commit to gh-pages

$(xcrun --find docc) process-archive \
transform-for-static-hosting PATH_TO_DOARCHIVE_FILE \
--output-path PATH_TO_SAVE_FILES \
--hosting-base-path URL_BASE_PATH

#URL_BASE_PATH=docc

Reference:

• https://github.com/apple/swift-markdown/blob/main/bin/update-gh-pages-documentation-site#L36
• https://gist.github.com/alfianlosari/9469a4d0ddf528355cdd64513999f431