Profiler API

Realised full CPU Profiler API
- start
- stop
- getCPUProfile
- removeProfile
- clearProfiles
- getProfileHeaders
HeapProfiler API

Not finished (needs HeapGraph, GarbageCollector)
Implemented:
HeapProfiler.getProfileHeaders
HeapProfiler.startTrackingHeapObjects
HeapProfiler.stopTrackingHeapObjects
HeapProfiler.getHeapSnapshot
HeapProfiler.removeProfile
HeapProfiler.clearProfiles
HeapProfiler.takeHeapSnapshot
HeapProfiler.addProfileHeader
HeapProfiler.addHeapSnapshotChunk
HeapProfiler.finishHeapSnapshot
HeapProfiler.reportHeapSnapshotProgress
HeapProfiler.lastSeenObjectId
HeapProfiler.heapStatsUpdate