This makes manipulator access closer to operators,
and allows Python access.
This adds RNA for manipulators, but not Python registration yet.
- Split draw style into 2x settings:
`draw_style` (enum) & `draw_options` (enum-flag)
- Rename wmManipulator.properties -> properties_edit,
Use wmManipulator.properties for ID-properties.
Note that this area of the API will need further work since
manipulators now have 2 kinds of properties & API's to access them.
This avoids having to use manipulator-type specific functions
to set the orientation.
And will make it simpler to access transformation from Python.
Currently the matrix is still used as an offset in places.
Also per-type orientation values still need to be removed.
- Option to start helper angle lines based on a vector
instead of the initial mouse coords (useful for bisect & spin).
- Option to show 2x helper lines
useful when dial is used to rotate an axis value.
Instead use generic 'WM_manipulator_new', adding a new 'setup'
callback (like wmManipulatorGroup.setup) used to initialize type vars.
This moves conventions closer to wmOperator and simplifies exposing to
Python.
- Add blentranslation `BLT_*` module.
- moved & split `BLF_translation.h` into (`BLT_translation.h`, `BLT_lang.h`).
- moved `BLF_*_unifont` functions from `blf_translation.c` to new source file `blf_font_i18n.c`.
