1. Remove emulated card reader UI and related timing delays.
2. Implement CNST string operands spanning card images.
3. Correct parsing of address pool constants and building of constant pools.
4. Correct parsing of empty operands.
5. Rearrange portions of the code, eliminate old stats-gathering prototype code.
Minor corrections to BALGOL-Main transcription.
Corrections and additional transcription for BALGOL-Overlay.
Commit BALGOL-FLOAT.baca intrinsic function transcription.
Commit corrections to BALGOL-Main.baca discovered during debugging of BAC-Assembler.
Commit tools/BAC-Xscript-Reformatter.wsf script to extract card decks from transcription files.
Commit BAC-Assembler corrections and enhancements.
Commit minor additions to B220ControlConsole.
