* [vcpkg_configure_cmake] Add NO_CHARSET_FLAG option

* [vcpkg_configure_cmake] Add documentation for new NO_CHARSET_FLAG option

* [vcpkg_configure_cmake, windows toolchain] Handle NO_CHARSET_FLAG in toolchain

* [build.cpp] Add Windows toolchain to package hash

* [duilib,msix,thrift,tidy-html5] Use NO_CHARSET_FLAG to fix regressions

* [oniguruma] Fix misusage of vcpkg_check_features

* [xsimd] Use vcpkg_check_features

* [vcpkg] Add vcpkg_check_feature, vcpkg_check_features

* [vcpkg] Remove vcpkg_check_feature

* [oniguruma,xtensor] Use vcpkg_check_features

* Ports Overlay feature spec

* Ports Overlay implementation

* [--overlay-ports] Refactor handling of additional paths

* Code cleanup

* [--overlay-ports] Add help

* [depend-info] Support --overlay-ports

* Add method to load all ports using PathsPortFileProvider

* Make PortFileProvider::load_all_control_files() const

* Remove unused code

* [vcpkg] Avoid double-load of source control file between Build::perform_and_exit and Build::perform_and_exit_ex

* [vcpkg] Clang format

* [vcpkg] Fixup build failure introduced in b069ceb2f231

* Report errors from Paragraphs::try_load_port()

* [maintainer-guide] Initial commit of maintainer guidelines

* [maintainer-guide] Rearrange sections

* [maintainer-guide] Add note about GitHub Draft PRs

* [maintainer-guide] Improvements

* [maintainer-guide] Address comments about versioning conventions

* [maintainer-guide] Add section about how portfiles interact with CMakeLists.txt

* [maintainer-guidelines] Add link from docs index

* [control file] Add optional 'Homepage' tag

This allows a 'Homepage' tag to be added to a port in order to support
changes such as PR #2933.  It currently does not do anything with it.

* [docs]

Add Homepage to the control file documentation

* move urls from descriptions to homepage field.