(CoroutineDebugger) Stack printing logic extracted to the single place

for DebugMetadata and CoroutinePanel, some corner cases fixed, test
cases added.
Added:
 - external maven dependencies in test scenarios
 - comparing stack traces + variables on breakpoint

idea/jvm-debugger/jvm-debugger-test/testData/continuation/suspendFun.kt

@@ -0,0 +1,30 @@
+package coroutine1
+
+import kotlin.coroutines.Continuation
+import kotlin.coroutines.EmptyCoroutineContext
+import kotlin.coroutines.startCoroutine
+
+fun main() {
+    val cnt = Continuation<Int>(EmptyCoroutineContext) { }
+    val result = ::test1.startCoroutine(1, cnt)
+    println(result)
+}
+
+suspend fun test1(i: Int): Int {
+    val test1 = "a"
+    a(test1)
+    println(test1)
+    return i
+}
+
+suspend fun a(aParam: String) {
+    val a = "a"
+    b(a)
+    println(a)
+}
+
+suspend fun b(bParam: String) {
+    val b = "b"
+    // Breakpoint!
+    println(b)
+}