0029967: Draw Harness - command bounding has annoying syntax

0029967: Draw Harness - command bounding has annoying syntax

Bnd_OBB constructor from Bnd_Box is fixed for VOID input.

DRAW command bounding command is adjusted:
- Support of old syntax 'bounding shape'is restored.
- Exception on VOID bounding box is avoided.
- Arguments are handled in case-insensitive way.
- Options -s, -perfmeter, and ability to set result as first argument are removed as redundant.
- Help is moved to command definition.

Separate command OCC29311 is added (in QADraw) to do the same as option -perfmeter did; tests are updated.