Adds `-DOSX_NIGHTLY`. With -DOSX_NIGHTLY=ON will produce copies of the zip with generic names: `RawTherapee_macOS_arm64_latest.zip` for the purpose of hyperlinking. This is activated for GitHub Actions automated builds.
* mac: specify catalina on github action
* mac: use clang instead of /path/to/clang
* mac: Exec Architectures --> Architecture Priority
* mac: add an option to generate a universal app
* mac: generate a universal app
* mac: use "Universal" for arch in naming
* mac: remove some braces
* mac: fix gtk3 environment paths
* mac: fix universal url logic
* mac: merge about txts for universal build
* Mac: fix osx version minimums in universal 1
* Mac: update info plist for osx version minima
* Mac: update universal versioning
* Mac: add processor tunings for sandy-ivy bridge
* mac: fix minimum versioning statements
* Mac: fix a paste error
* mac: remove any x/X libs from bundle
* mac: don't get rid of libxcb for cairo
* mac: fix a typo
* mac: revert library removals for cairo
Various changes to improve compilation of RT on macOS thanks to @Benitoite and @Pandagrapher
* mac: use sed -i.bak, add X's to mktemp template in macosx_bundle.sh
* mac: test lensfun version in macosx_bundle.sh to select correct lensfun database version (version_1 for 3.2 and version_2 for 3.95)
* mac: remove DYLD_FALLBACK_LIBRARY_PATH from main Info.plist
* mac: removes some -cli codesigning commands
* mac: remove erroneous newlines in macosx_bundle.sh and suppress superfluous codesigning of Contents/Frameworks/*dylib
* mac: Apple arm64/homebrew compatibility update
* mac: CMakeLists.txt arm64 homebrew compatibility
* mac: add Apple arm64 CPU native flag
* mac: fix pixbuf query syntax
* mac: adapt. of Pandagrapher's patch
* mac: additional instructions for the -cli exec.
* mac: revert target 10
* mac: remove legacy environment variable Per https://github.com/Beep6581/RawTherapee/pull/5786#issuecomment-792276656
* mac: fix destination of credits/license
* mac: copy {LOCAL_PREFIX}/share/locale to bundle
* mac: fixes a path for the License
* mac: fix of UpdateInfo command structure
* mac: remove redundant copying
* mac: use cmake to configure Info.plist values
* mac: configurator for Info.plist version values
* mac: fix locale detection / language
* mac: remove an outdated key from Info.plist
* mac: fix path usage for gtk.immodules / locale dir
* mac: revert a change merged elsewhere
* mac: follow more symlinks for 'brew builds
* mac: link to CoreFoundation for locale detection
* mac: link CoreFoundation for locale / C
* mac: detect locale with CoreFoundation per https://github.com/Beep6581/RawTherapee/pull/5786#issuecomment-798926898
* mac: remove outdated lines
* Update multilangmgr.cc
* mac: Info.plist language fixes (Pandagrapher) https://github.com/Beep6581/RawTherapee/pull/5786#issuecomment-813004475
* Mac: also package libpng12 for homebrew compatibility.
* macOS packaging and language updates
