Remember Test Sources root choice and suggest as default #1010#1519

Vassiliy-Kudryashov merged 4 commits intomainUnitTestBot/UTBotJava:mainfrom

Vassiliy-Kudryashov/1010-remember-test-sources-root-choice-and-suggest-as-defaultUnitTestBot/UTBotJava:Vassiliy-Kudryashov/1010-remember-test-sources-root-choice-and-suggest-as-defaultCopy head branch name to clipboard