* Quick fix: Simplify devBuilds.yml
- remove an excess build step
* Quick fix: Move `SetupNugetSources` script invocations above `parameters.beforeBuild`
- ensure NuGet.config is ready for all internal builds
- remove now-duplicate `SetupNugetSources` invocations wherever default-build.yml is used
* Quick fix: Clean up SiteExtensions/build.cmd
- quote all rooted paths
- check `%ERRORLEVEL%` after every `CALL`
- nits:
- add a few more `ECHO` commands
- wrap long lines
* Quick fix: Ensure `$(BuildNative)` is always set correctly
- fix problems using `-all` or `/p:BuildAllProjects=true` without `-buildNative`
- ensure `$(BuildNative)` is `false` where it's not supported
- move some duplicated settings into eng/Common.props and `<Import />` the new file
- remove now-duplicated parts of conditions using `$(BuildNative)`
* Quick fix: Consistently use `--build-*`
- avoid `/p:Build*` on the command line (except with eng/scripts/ci-source-build.sh)
- nits:
- remove now-useless `-buildNative` with `-all`
- expand and correct a couple of related comments and messages
* Quick fix: Support `-all` together with `-projects`
- remove need to specify `/p:BuildAllProjects=true`
- nit: simplify some Boolean logic
Add new command line parameters for working with the project:
* `-NoBuild`, `-NoRestore` - these already existed, but users found it hard to discover this powershell syntax: '-build:$false'
* `-Arch`/`--arch` - set the target CPU architecture to build. Defaults to x64
* `--os-name` - on non-Windows builds, manually specify if the build should target Alpine. generic Linux, or MacOS
* Rename flags used to build specific project types. The pattern now is `--build-$(group)` or `--no-build-$(group)` (In PowerShell its `-Build$(Group)` or `-NoBuild$(Group). Example: -NoBuildJava
Changes to build definitions:
* Update the ci build definition to build all supported architectures
* Support publishing multiple artifacts per job
Other changes:
* `-NoBuild` implies `-NoRestore`
* Add new properties, `TargetArchitecture`, `TargetOsName`, and `TargetRuntimeIdentifier`
* Replace usages of `SharedFxRid` with these new properties
* To make `--no-build-nodejs` actually work, replaced Components.Browser.JS.csproj with Components.Browser.JS.npmproj
* Fix errors when building for win-arm on a clean machine
* Fix a few other project errors, like using the wrong syntax for DefaultItemExcludes, or using the wrong Platform value for x86