Adds a new, cleaned up, HashMap implementation.
* Uses Robin Hood Hashing (https://en.wikipedia.org/wiki/Hash_table#Robin_Hood_hashing).
* Keeps elements in a double linked list for simpler, ordered, iteration.
* Allows keeping iterators for later use in removal (Unlike Map<>, it does not do much
for performance vs keeping the key, but helps replace old code).
* Uses a more modern C++ iterator API, deprecates the old one.
* Supports custom allocator (in case there is a wish to use a paged one).
This class aims to unify all the associative template usage and replace it by this one:
* Map<> (whereas key order does not matter, which is 99% of cases)
* HashMap<>
* OrderedHashMap<>
* OAHashMap<>
These typedefs don't save much typing compared to the full `Ref<Resource>`
and `Ref<RefCounted>`, yet they sometimes introduce confusion among
new contributors.
Didn't commit all the changes where it wants to initialize a struct
with `{}`. Should be reviewed in a separate PR.
Option `IgnoreArrays` enabled for now to be conservative, can be
disabled to see if it proposes more useful changes.
Also fixed manually a handful of other missing initializations / moved
some from constructors.
Fixed line_drawing_cache not containing anything
Fixed is_move_caret_on_right_click_enabled requiring the context menu to be enabled
Fixed when selecting_enabled is false not disabling shift + click
Fixed when selecting_enabled is false not being able to drag the caret
Fixed _delete emitting signals when nothing had changed.
Fixed insert_line_at up causing a visual update
Fixed get_pos_at_line_column returning a valid position when it was invalid
Fixed set_caret_column unnecessary emitting "caret_changed" when the column is greater then the line
Fixed select_word_under_caret not accepting the edges of words
Fixed select_word_under_caret moving the caret to the start of the line when no word was found
Fixed get_selection_line and get_selection_column not checking if the selection was enabled
Fixed set_line_as_center_visible throwing errors if it would show line 0
Fixed set_line_as_center_visible being off by one
Fixed set_line_as_last_visible not being able to show the first line
Fixed pressing UP and the end of a wrapped line sending the caret to col 0 rather then then persevering the position.
Add "generate_mipmap" font import option.
Add some missing features to the Sprite3D.
Move BiDi override code from Control to TextServer.
Add functions to access TextServer font cache textures.
Add MSDF related flags and shader to the standard material.
Change standard material cache to use HashMap instead of Vector.
Zero or negative ratios are not valid, so the property hint prevents
choosing such values.
The property hint allows using 4 decimals so that common aspect ratios
like 16/9 can be specified with a good level of precision.
* Instead of containing single animations, AnimationPlayer now contains libraries.
* Libraries, in turn, contain the animations.
This paves the way for implementing the possibility of importing scenes as animation libraries, finally allowing to import animations separate from the 3D models.
Missing (will be done on separate PRs):
* Make it possible to import scenes (dae/fbx/gltf) as animation libraries.
* Make it possible for AnimationTree to import animation libraries on its own, so it does not rely on AnimationPlayer for everything.
