Also add `find_doc` to be able to test the existence of an
active document before searching for the object.
These can be used in the make functions of most modifier commands.
Use the value of the parameters `Draft_array_fuse`
and `Draft_array_Link` to set the default value
of the `Fuse` and `Link array` checkboxes in the task panels.
These default to `False` and `True`, respectively.
Whenever the user toggles a checkbox
the new value of the parameter is stored so that when
the command is used again the last state of the checkbox
is remembered.
Small spacing fixes like imports in separate lines
for more clarity, and the position of the license.
Also use the new `messages` module to provide the functions
to print text to the console.
Many auxiliary tools used by `Draft.py` can be defined
in another module. Many functions are moved to this module
so that `Draft.py` isn't as big and hard to maintain.
The following is a list of functions and attributes that were moved:
`stringencodecoin`, `arrowtypes`, `typecheck`,
`getParamType`, `getParam`, `setParam`, `precision`,
`tolerance`, `epsilon`, `getRealName`, `getType`,
`getObjectsOfType`, `isClone`, `getGroupNames`,
`ungroup`, `shapify`, `getGroupContents`,
`printShape`, `compareObjects`, `loadSvgPatterns`,
`svgpatterns`, `getMovableChildren`, `getWindows`,
`utf8_decode`.
Moreover, many of these functions were renamed
to comply better with PEP8 guidelines, particularly
the use of `snake_case`. For example, `getGroupNames`
is now `get_group_names`; `getMovableChildren`
is now `get_movable_children`.
Aliases are provided for the old names so that
other functions and classes that depend on these
won't break. The new names should be the official
programming interface, while the old names
should be deprecated at some point in the future.
