f-engrave full changelog

Changed re.match Commands to use raw strings for compatibility with newer Python versions.

Improved cleanup calculations using pyclipper library
Added "L" loop cleanup option for both straight and v-bit
Started making PyPy windows executable distribution (bigger download but about times faster)

Made importing png images with clear backgrounds work better (works with PNG exports from Inkscape).
Added PNG and TIF to the image file types that show up by default.

Fixed a bug introduced in V1.69 that caused v-carving cleanup calculations to fail sometimes.

Fixed a bug introduced in V1.69 that caused v-carving cleanup calculations to fail sometimes.

Fixed bug in sort_for_v_carve that resulted in an error for certain designs.

Fixed bug that created erroneous lines in some circumstances during v-carving
Mapped save function to Control-S for easier g-code saving

Fixed a bug that resulted in bad cleanup tool paths in some situations
Changed the executable build settings to get rid of the black window that showed up on Windows computers

Fixed bug in arc fitting - Rewrote Cleanup operation calculations (fixes a bug that resulted in some areas not being cleaned up
Changed flip normals behavior, There are now two options: Flip Normals and Add Box (Flip Normals)
Changed prismatic cut to allow the use of either of the two Flip normals options (one of the two Flip normals options must be selected for the inlay cuts to be performed properly
Added DXF Export option (with and without auto closed loops)

Fixed some special cases which resulted in errors being thrown (v-carve single lines)
Changed the default settings to be more compatible with incomplete g-code interpretors like GRBL