#172 2002 STANDARD +: Implement boolean picture

[Simon Sobisch]

We already have a boolean category and class. The necessary changes for the first implementation of boolean picture PIC 1 is:

• tree.c:
• #define PIC_BOOLEAN 0x16
• in cb_build_picture() check '1', set PIC_BOOLEAN, add tests
• check for support of boolean(and national) picture
• config.def:
• change cb_numeric_boolean and cb_national_literals to include the picture for them
• change _("hexadecimal-boolean literals (b'A')") to _("hexadecimal-boolean literals (bx'A')")
• testsuite:
• adjust for the changed configuration flags
• add checks for configuration of national/boolean picture and for syntax
• general: check if boolean data works and either set as PENDING or UNFINISHED

[Simon Sobisch]

Additional information (applies to MF only): when PIC 1 is found the BINLIT directive is automatically set to "BOOLEAN". Equivalent in GnuCOBOL: set numeric-boolean to 0)