Add support for profiling and benchmarking Android Studio sync

[adammurdoch]

Replaces the previous "sync mock" with a real sync triggered from Android Studio.

Introduces a new "Gradle client" implementation that runs Studio with an agent that intercepts calls to the tooling API in order to inject the correct settings and collect duration information.

This initial implementation has a few limitations:

1. A human still needs to trigger sync in Studio. The profiler displays instructions on the console.
2. It only works on macOS for now.

These are things that could be improved in the future.

[eskatos]

I just did a quick first pass at the changes. I can confirm it fails gracefully on Linux. Will give it a try on a mac later Today.

[eskatos]

Tried on a mac against Studio 4.2 Canary 11 installed via the JetBrains Toolbox and I got:

* Starting Android Studio at /Users/paul/Applications/JetBrains Toolbox/Android Studio Canary.app
java.lang.IllegalStateException: Expected object at line 9, found "

    ".
	at org.gradle.profiler.studio.LauncherConfigurationParser$PListParser.broken(LauncherConfigurationParser.java:189)
	at org.gradle.profiler.studio.LauncherConfigurationParser$PListParser.readObject(LauncherConfigurationParser.java:140)
	at org.gradle.profiler.studio.LauncherConfigurationParser$PListParser.dictEntries(LauncherConfigurationParser.java:103)
	at org.gradle.profiler.studio.LauncherConfigurationParser$PListParser.plist(LauncherConfigurationParser.java:92)
	at org.gradle.profiler.studio.LauncherConfigurationParser$PListParser.parse(LauncherConfigurationParser.java:82)
	at org.gradle.profiler.studio.LauncherConfigurationParser.calculate(LauncherConfigurationParser.java:20)
	at org.gradle.profiler.studio.StudioGradleClient.<init>(StudioGradleClient.java:28)
	at org.gradle.profiler.GradleClientSpec$4.create(GradleClientSpec.java:64)
	at org.gradle.profiler.GradleScenarioInvoker.doRun(GradleScenarioInvoker.java:69)
	at org.gradle.profiler.GradleScenarioInvoker.doRun(GradleScenarioInvoker.java:21)
	at org.gradle.profiler.ScenarioInvoker.run(ScenarioInvoker.java:20)
	at org.gradle.profiler.Main.invoke(Main.java:110)
	at org.gradle.profiler.Main.run(Main.java:76)
	at org.gradle.profiler.Main.main(Main.java:18)

Here's theContents/Info.plist file https://gist.github.com/eskatos/c8f305f890ddf422298aecaf86381f6d

[eskatos]

Exact same problem with 4.1 RC3 or 4.0.

[adammurdoch]

I've switched to using the dd-plist library. Can you try this again?

[adammurdoch]

I've addressed the review comments. I'm going to merge this, and we can do any fixes in a follow up PR.

[eskatos]

@adammurdoch with the changes in #268 I was able to make it work