Summary: Three tests added: 1) test stressing VirtualSpace by resizing it constantly 2) test running unit tests in several threads 3) test checking protected area in ReservedHeapSpace class
Reviewed-by: stefank, zgu
Contributed-by: aleksey.timofeev@oracle.com

Summary: Added @run tag so that it actually runs the test, also fixed broken command line and incorrect parsing. Also reviewed by gerard.ziemski@oracle.com
Reviewed-by: mgerdin, zgu

Summary: Modify WhiteBoxAPI to use interface classes from test/testlibrary instead, add ClassFileInstaller to resolve the boot class path issue
Reviewed-by: ctornqvi, dsamersoff, coleenp, kvn

Summary: Add tests for the Native Memory Tracking feature, includes regression tests for 8005936 and 8004802
Reviewed-by: zgu, coleenp