Support linux-docker-android (and other) stack by steps-project-scanner

Description of the feature request

Suppose you have the following in bitrise.yml:

---
format_version: 5
default_step_lib_source: https://github.com/bitrise-io/bitrise-steplib.git
trigger_map:
- push_branch: "*"
  workflow: primary
- pull_request_source_branch: "*"
  workflow: primary
workflows:
  steps:
  - git-clone: {}
  - script:
      deps:
        apt_get:
        - name: ninja-build
      inputs:
      - content: |-
          set -e
          set -x

          mkdir libevent
          cd libevent
          cmake -d
            -DCMAKE_TOOLCHAIN_FILE=/opt/android-ndk/build/cmake/android.toolchain.cmake
            -DANDROID_TOOLCHAIN=gcc
            -G Ninja
            /bitrise/src
          ninja
  meta:
    bitrise.io:
      stack: linux-docker-android

And steps-project-scanner cannot parse it, reports the following error:

[06:31:54] No known platform detected

Refs: Support linux-docker-android (and other) stack · Issue #67 · bitrise-steplib/steps-project-scanner · GitHub