Fixes:
https://issuetracker.google.com/issues/251742470

Make sure each file is only generated by a single rule.

Co-authored-by: penmetsaa <penmetsaa@google.com>

Migration of Demo to Soy/Closure templates

* [maven-release-plugin] prepare release v8.12.56

* [maven-release-plugin] prepare for next development iteration

* added Mac setup instructions

* [maven-release-plugin] prepare release v8.12.55

* [maven-release-plugin] prepare for next development iteration

* [maven-release-plugin] prepare release v8.12.54

* [maven-release-plugin] prepare for next development iteration

* [maven-release-plugin] prepare release v8.12.53

* [maven-release-plugin] prepare for next development iteration

Bumps [protobuf-java](https://github.com/protocolbuffers/protobuf) from 3.12.2 to 3.16.1.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/master/generate_changelog.py)
- [Commits](https://github.com/protocolbuffers/protobuf/compare/v3.12.2...v3.16.1)

---
updated-dependencies:
- dependency-name: com.google.protobuf:protobuf-java
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Tijana Vislavski Gradina <tijanavg@google.com>

Bumps [protobuf-java](https://github.com/protocolbuffers/protobuf) from 3.8.0 to 3.16.1.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/master/generate_changelog.py)
- [Commits](https://github.com/protocolbuffers/protobuf/compare/v3.8.0...v3.16.1)

---
updated-dependencies:
- dependency-name: com.google.protobuf:protobuf-java
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Tijana Vislavski Gradina <tijanavg@google.com>

* Fixing anchors

Co-authored-by: penmetsaa <penmetsaa@google.com>

* Readme update w.r.t new abseil-cpp dependency and fixing the absl-cpp version that we download.

* Reducing hash of commit to just working level

Currently, CMake is configured to download and build abseil from source
whenever `BUILD_GEOCODER` is set to `ON`. Let's allow users to use a
pre-existing installation of abseil by checking for one first before
attempting to download and build another one.

If CMake finds a pre-existing installation of abseil, it will use that
instead.

We need to allow the user to override `CMAKE_CXX_STANDARD` because they
may have built abseil with a newer standard than C++11. Attempting to
build libphonenumber with C++11 will fail if abseil was built with a
newer C++ standard.

Closes #2772.

A Ruby gem which plugs directly into Google's native C++ libphonenumber for extremely fast and robust phone number parsing, validation, and formatting. On average, most methods are 70x to 80x faster than other Ruby phone number libraries.

We've added a Salesforce port of this library written in Apex and adapted to Salesforce governor limits.

* Adding anchors for all FAQ entries (down to ###)

- Followup to PR #2773, where we started using official appengine Maven plugin than older ```maven-gae-plugin```
- ```appcfg``` script is deprecated and most of these works can be done through ```gcloud-appengine-sdk```
- More details in cl/333435946 (where we moved away from ```appcfg``` during the releases) and cl/xxxxx (We no more need any manual copy jar commands)

* Update CONTRIBUTING.md (we no longer accept metadata patches directly)

* Update making-metadata-changes.md

* Update making-metadata-changes.md

Co-authored-by: lararennie <lararennie@users.noreply.github.com>
Co-authored-by: Tijana Vislavski Gradina <tijanavg@google.com>

* [maven-release-plugin] prepare release v8.12.51

* [maven-release-plugin] prepare for next development iteration

* [maven-release-plugin] prepare release v8.12.50

* [maven-release-plugin] prepare for next development iteration

* Removing old generated files when building new ones

* Removing old generated files when building new ones

* Removing old generated files when building new ones

Co-authored-by: penmetsaa <penmetsaa@google.com>

* [maven-release-plugin] prepare release v8.12.49

* [maven-release-plugin] prepare for next development iteration

* Metadata updates for release 8.12.49
* Update Release Notes refarding new metadata resources