Added test on mkdir.
Moved virtual logical-set to Program class.
(Program) Refactored logical for C_Struct.
Reimplemented program output of main and oprand functions.
Reimplemented program output for method and C-object includes.
Removed interim line-based composition. Updated Program.Method.
Refactored program_ready() and program() into Program class.
Fixed label punctuation.
Refactored BCL into Program class from BCL.HPP.