v0.9.0

• Breaking Remove L10N.load_exe_dir, use zng::env::res with L10N.load_dir.
• Breaking .zr-rp now trims the values.
• Breaking .zr-rp now cleans the values for some cases.
• Fix WINDOW.position().set not moving the window.
• Add ZR_LICENSE in cargo zng res.
• Breaking Add zng::env::About::license.
• Implement (de)serialize for zng::env::About.
• Breaking .zng-template moved to .zng-template/keys.
• Breaking .zng-template-ignore moved to .zng-template/ignore.
• Add .zng-template/post, an optional post template generation script or crate to run.
• .zr-rp now can read files using ${<file}.
• .zr-rp now can read stdout of bash script lines using ${!cmd}.
• Breaking .zr-rp now requires the colon in :?else.
• Breaking .zr-rp :?else is now only used if the source cannot be read or is not set. Empty values are valid.
• Fix cargo zng res not showing tools progress prints.
• Fix crash handler attaching to other non-app processes.
• Fix .zr-copy not merging folders.
• Breaking .zr-sh now automatically runs with set -e.
• .zr-sh now runs in bash if it is present, fallbacks to sh.
• Breaking Change default zng::env::res for Linux to ../share/{executable-name}.
• Breaking Replace dir definition files in zng::env
  • From .zng_res_dir to .res-dir.
  • From zng_config_dir to config-dir.
  • From zng_cache_dir to cache-dir.
  • Relative dirs are now resolved from where the file is defined.
• Breaking Remove deprecated "APP.about" and related types and macro.