Format all files before commit

[luisalves00]

Add support to apply spotless before commit.
resolves #12

Note: this removes the usage of com.github.lipiridi.spotless.applier.ToolEnvExternalSystemUtil where the behaviour created by

final String title = moduleName + " " + taskSettings.getTaskNames();

is lost.

[lipiridi]

Hello! I appreciate your contribution. I've read through your issue and understand your needs.
ToolEnvExternalSystemUtil was created in order to support maven tasks properly due to some issues encountered with the default ExternalSystemUtil
I'll test the maven part and get back to you with ideas or comments.

[lipiridi]

I added commits to the PR in order to keep supporting maven and apply spotless by commit check to the entire project.
I also came upon that the modal sync gradle execution bug is somehow fixed Youtrack issue. Just it was the blocker before to add such ability.

[luisalves00]

Great, I didn't check Maven, since I don't use it that often anymore. I was assuming since it's calling the existing code it would also work fine. I have no clue how to automate test on a IntelliJ plugin.
When looking in a way to implement it I found your bug report and that a solution was implemented.
Thanks for including the pull request.