Fixed overlapping Abort() methods
Fixed crash in ToolRunner.Abort() on process exit
Added simple instructions parsing
Introduced simple GDB runner

Will still need to use a trick with another 'host' process, as it's
impossible in Windows to send Ctrl+C to another console process beside
child one...
Simplified creation of NdkDefinition
Introduced internal Defaults for tests-setup
Added architecture identification to GdbInfo