* vcpkg_from_git: Add support for git over ssh

* vcpkg_from_git: append ssh bin directory to path

* vcpkg_from_git: fix function signature on non windows platforms

* Revert "vcpkg_from_git: fix function signature on non windows platforms"

This reverts commit 0d608ee5911d2ba274e782a21dfe77a502a39053.

* Revert "vcpkg_from_git: append ssh bin directory to path"

This reverts commit 377ce3fae1e2c085a5da7ace8185624a345a511b.

* Partial Revert "vcpkg_from_git: Add support for git over ssh"

This partially reverts commit 9b81b16c4ccd3d8646d97e66234566a07af8a308.

Co-authored-by: Marc Boucek <marc.boucek@native-instruments.de>
Co-authored-by: Marc Boucek <marc.boucek@posteo.net>

* [portfile functions] Override execute_process() to accept ALLOW_IN_DOWNLOAD_MODE option

* [vcpkg install] Set VCPKG_DOWNLOAD_MODE when using --only-downloads option

* [vcpkg_find_acquire_program] Allow in Download Mode

* Don't stop when build fails for a package

* Download sources for all packages in dependency graph

* Improve output messages

* Enable acquiring MSYS packages in download mode

* Documentation

* Update documentation

* execute_process() always fails on Download Mode

* Regenerate docs and fix formatting

* Run clang-format

* Use _execute_process on vcpkg_from_<source> helpers

* Fix calls to _execute_process() when not in Download Mode

This reverts commit 65d4bc146bf7c1c21989b680497b1f6f9a09c967.

* [portfile functions] Override execute_process() to accept ALLOW_IN_DOWNLOAD_MODE option

* [vcpkg install] Set VCPKG_DOWNLOAD_MODE when using --only-downloads option

* [vcpkg_find_acquire_program] Allow in Download Mode

* Don't stop when build fails for a package

* Download sources for all packages in dependency graph

* Improve output messages

* Enable acquiring MSYS packages in download mode

* Documentation

* Update documentation

* execute_process() always fails on Download Mode

* Regenerate docs and fix formatting

* Run clang-format

* Use _execute_process on vcpkg_from_<source> helpers

* [vcpkg_from_git/fdlibm] Fix flaky sha256 issues
* [doc] regenerate docs

* fdlibm init

* fix links

* Fix different hashes creation with google host

* Move functions to script

* Fix documentation

* [vcpkg_from_git] Add SHA512 argument, switch to zip to better support Windows.

* [fdlibm] Trigger rebuild

* [vcpkg_from_git] Use FETCH_HEAD reference to support tags