Add a 'Run Specific Group Tests' action

When I work on features for Kotlin/JS, I frequently feel the need in running all JS-related test classes (and then, sometimes, WasmJS-related tests) but not all of available test classes. For example, I mostly not interested in JVM-related or Native ones.

What I want to see is an additional action like 'Run Specific Group Tests' action in common tests, with a possibility to choose between `[JS]`, `[Wasm]`, etc. For ungrouped tests, I expect to see special `Other` group or something like that.

Also, I suppose it would be useful to include new editor toolbar action near 'Run all...', something like 'Run all from group...'.