Unity: ignore mdbs, fix path to crashlytics file, make AssetStoreTools optional

Only people building Unity plugins will need to import the asset store tools plugin into their project, and it's a toss up whether they want to commit the tooling into their repo (they might or they might not want to, it highly depends on their workflow). The default .gitignore shouldn't be making this choice for these users.

Unity projects targeting the 2.0/3.5 runtime or built with mono < v5.0 generate `mdb` files, not `pdb` files.

Looks like the `crashlytics-build.properties` gets around in more than just the `StreamingAssets` folder, looking at [examples around the internets](https://github.com/auth0/sharelock-android/blob/master/app/src/main/assets/crashlytics-build.properties), so it should probably just be ignored as a filename.

Add version control ignore

google-services.json

vcs.xml can be considered for gitignore as per this [stackoverflow discussion](https://stackoverflow.com/questions/16736856/what-should-be-in-my-gitignore-for-an-android-studio-project/18454251#18454251)

google-services.json file should be commented on default if they want they will change otherwise it'll destroy the project

Unified base folder name format

[Unity] Ignore Logs/Packages-Update.log

[Visual studio] Ignore health check temp database

IAR_EWARM

Unity Logs

Added Logs to Unity.gitignore, which is automatically generated in Unity 2018.3 to log package updates.

Updating my fork with the original master

feat: Add missing executables and generated

Create AtmelStudio.gitignore

Add ignorer to .env.test variable in NodeJS

remove rsconnect folder from R.gitignore

Create Magento2.gitignore

[Go] Fix typo in comment

Improve comment capitalization consistency

Only unignore directories that have at least a character ending with .cache

Ignore Generated Files

[Unity] Ignore .gradle/ build cache

correct capitalization problems and add Octave which link to MATLAB

[Node] fix wsp