Allow Running Container as Runner Host User (#600)

- Added `runAsHostUser` to allow running the container as the same user as the host system. This fixes most permissions issues on self-hosted runners.
- Perform android sdk setup during entrypoint.sh to ensure it has root permissions if the user switches to a non-root user
- Automatically detect android sdk target version if parameters are not already provided to configure the sdk
- Generate a new uuid for machineID to ensure separate containers are unique to reduce license activation errors
- Add exponential retry strategy for Ubuntu license activations

src/model/image-environment-factory.ts

@@ -62,6 +62,7 @@ class ImageEnvironmentFactory {
       { name: 'ANDROID_EXPORT_TYPE', value: parameters.androidExportType },
       { name: 'ANDROID_SYMBOL_TYPE', value: parameters.androidSymbolType },
       { name: 'CUSTOM_PARAMETERS', value: parameters.customParameters },
+      { name: 'RUN_AS_HOST_USER', value: parameters.runAsHostUser },
       { name: 'CHOWN_FILES_TO', value: parameters.chownFilesTo },
       { name: 'GITHUB_REF', value: process.env.GITHUB_REF },
       { name: 'GITHUB_SHA', value: process.env.GITHUB_SHA },