Analyze the mainframe migration blockers

Record the CICS and IMS constructs that need a design decision before a program can move: non-local control flow, state that outlives a transaction, region affinity, resources named only at run time, and checkpoint/restart, with the whole EXEC CICS inventory beside them, which is what the size of the work is estimated from. FindMainframeMigrationBlockers and FindCicsCommands answer the same questions and mark what they found in the source; this one produces the tables and changes nothing.