textproc/py-RTFDE: Update to 0.1.0

• Remove LXML option (It is a development dependency, so RTFDE does not need it to work properly.)

ChangeLog:
https://github.com/seamustuohy/RTFDE/commit/66780b8b1bc708f970de497e6e0c73d6f4a1a377

• Updated to only work with bytes.
• Added far greater unicode support.
• Fixed various whitespace issues.
• Added proper htmlrtf support.
• Added support for extracting (but not parsing binary data).
• Update grammar to be far more explicit when extracting objects.
• Fixes to ensure deencapsulation handles whitespace properly.
• Adds grammar composer to make grammar modifications more clearly defined.
• Adding support for surrogates which use raw unicode instead of 16bit signed encoding.
• Added better handling of parsing unicode HH replacement chars.

PR: 273063