Initial commit of pragma newsource pragma newsource enables a source code variant as follows: 1. no line numbers 2. no implied comments at the end of lines 3. all comments must be introduced by a comment character 4. spaces are allowed in operands (4) is not quite complete. This commit handles "operandless" instructions (anything where the parser calls skip_operand()) and expression parsing.

See the file GPL3 for a copy of the GNU General Public License, version 3,
under which the majority of this distribution is licensed.

Some specific source files, including many of those in the lwcc subdirectory
are licensed differently. See each individual file for specific details.