Initial work on the schematic view.
Added some tests to bsim.
Fixed code to pass tests. Added tests to verify fixes.
Added tests for BSim.Beta.Memory.
New tests and changes/fixes for tests.
More emulation tests (and a bug fix)
Added button to switch between schematic and programmer view.
Toolbar buttons hide their tooltip on disable.
Don't leave split mode when split.
Merge branch 'bsim'