Update kotlin report properties

-add kotlin.build.report.output to add file/http/build_scan reports
-all reports verbose by default
-verbose reports includes compiler metrics
-fix "custom value exceed length limit"

build-common/src/org/jetbrains/kotlin/build/report/metrics/BuildPerformanceMetric.kt

@@ -14,6 +14,8 @@ enum class BuildPerformanceMetric(val parent: BuildPerformanceMetric? = null, va
         LOOKUP_SIZE(CACHE_DIRECTORY_SIZE, "Lookups size"),
         SNAPSHOT_SIZE(CACHE_DIRECTORY_SIZE, "ABI snapshot size"),
 
+    COMPILE_ITERATION(parent = null, "Total compiler iteration"),
+
     // Metrics for the `kotlin.incremental.useClasspathSnapshot` feature
     ORIGINAL_CLASSPATH_SNAPSHOT_SIZE(parent = null, "Size of the original classpath snapshot (before shrinking)"),
     SHRUNK_CLASSPATH_SNAPSHOT_SIZE(parent = null, "Size of the shrunk classpath snapshot"),

build-common/src/org/jetbrains/kotlin/build/report/metrics/BuildPerformanceMetrics.kt

@@ -21,7 +21,7 @@ class BuildPerformanceMetrics : Serializable {
         }
     }
 
-    fun add(metric: BuildPerformanceMetric, value: Long) {
+    fun add(metric: BuildPerformanceMetric, value: Long = 1) {
         myBuildMetrics[metric] = myBuildMetrics.getOrDefault(metric, 0) + value
     }