* Node API v2
* Update gitignore
* Add get_pmmr_indices method
* Add Foreign and Owner API each one with specific secret
* Fix failing tests
* Revert to 'Option<u64>'
* chore: replace trim_right with $ sed -i'' 's/trim_right/trim_end/' **/*.rs
* docs: individually document macros to avoid warning, add TODO to make to_edge hygenic
* docs: document impl_array_newtype macros, refactor: move all impl_array_newtype macro traits into impl_array_netype_index
* Support TLS in ApiServer
This is ground work to support TLS in Grin APIs (like wallet ot node). Particular API implemention needs to decide if TLS is used or not and pass certificate data etc.
* P12 format support
* New method to start TLS server
* Transparent TLS support in API client (depends on URL scheme http/https)
* Refactoring
* Initial support for graceful shutdown (commentred out int this PR, unstable for now)
* API server tests (TLS server test is disabled by default, hyper client rejects self-signed certificates, so extra step is needed to install local CA (I used mkcert)
* Add a cert file to make test complile
