Preset system

[NMC-TBone]

Preset system for properties based on discussion #109
Includes same predefiend presets as Giants Maya & Blender exporter, in addition you can also create your own presets.

The custom presets will be stored in:
%appdata%\Blender Foundation\Blender\4.3\presets\i3dio

The only thing thats a bit annoying is that we cannot have the delete operator on the same row as the execute operator (for each individual user preset). Because in a menu this will for some reason either scale the menu width across your entire monitor or misalign the operators.
So I did it like this for now:

When you click on Delete Preset this new popup menu will appear with a enum of all the user made presets:

Since we need custom logic to properly save the the user presets we cannot use the "standard" preset menu that blender use. If a user make a preset on e.g. a mesh object, we need to write to add obj type checks in the preset file to prevent setting e.g. something with rigid body properties to a empty or joint properties to a mesh etc etc.

import bpy
obj = bpy.context.object

obj.i3d_attributes.visibility = True
obj.i3d_attributes.clip_distance = 1000000.0
obj.i3d_attributes.min_clip_distance = 0.0
obj.i3d_attributes.object_mask = '0'
obj.i3d_attributes.exclude_from_export = False

if obj.type == 'MESH':
    obj.i3d_attributes.rigid_body_type = 'none'
    obj.i3d_attributes.collision = True
    obj.i3d_attributes.collision_mask = 'ff'
    obj.i3d_attributes.compound = False
    obj.i3d_attributes.trigger = False
    obj.i3d_attributes.restitution = 0.0
    obj.i3d_attributes.static_friction = 0.5
    obj.i3d_attributes.dynamic_friction = 0.5
    obj.i3d_attributes.linear_damping = 0.0
    obj.i3d_attributes.angular_damping = 0.009999999776482582
    obj.i3d_attributes.density = 1.0
    obj.i3d_attributes.solver_iteration_count = 4
    obj.i3d_attributes.split_type = 0
    obj.i3d_attributes.split_uvs = [0.0, 0.0, 1.0, 1.0, 1.0]
    obj.data.i3d_attributes.casts_shadows = False
    obj.data.i3d_attributes.receive_shadows = False
    obj.data.i3d_attributes.non_renderable = False
    obj.data.i3d_attributes.distance_blending = True
    obj.data.i3d_attributes.rendered_in_viewports = True
    obj.data.i3d_attributes.is_occluder = False
    obj.data.i3d_attributes.cpu_mesh = '0'
    obj.data.i3d_attributes.nav_mesh_mask = '0'
    obj.data.i3d_attributes.decal_layer = 0
    obj.data.i3d_attributes.fill_volume = False
    obj.data.i3d_attributes.use_vertex_colors = False

import bpy
obj = bpy.context.object

obj.i3d_attributes.visibility = True
obj.i3d_attributes.clip_distance = 1000000.0
obj.i3d_attributes.min_clip_distance = 0.0
obj.i3d_attributes.object_mask = '0'
obj.i3d_attributes.exclude_from_export = False

if obj.type == 'EMPTY':
    obj.i3d_attributes.lod_distances = [0.0, 0.0, 0.0, 0.0]
    obj.i3d_attributes.lod_blending = True
    obj.i3d_attributes.use_parent = True
    obj.i3d_attributes.minute_of_day_start = 0
    obj.i3d_attributes.minute_of_day_end = 0
    obj.i3d_attributes.day_of_year_start = 0
    obj.i3d_attributes.day_of_year_end = 0
    obj.i3d_attributes.weather_required_mask = '0'
    obj.i3d_attributes.weather_prevent_mask = '0'
    obj.i3d_attributes.viewer_spaciality_required_mask = '0'
    obj.i3d_attributes.viewer_spaciality_prevent_mask = '0'
    obj.i3d_attributes.render_invisible = False
    obj.i3d_attributes.visible_shader_parameter = 1.0
    obj.i3d_attributes.joint = False
    obj.i3d_attributes.projection = False
    obj.i3d_attributes.projection_distance = 0.009999999776482582
    obj.i3d_attributes.projection_angle = 0.009999999776482582
    obj.i3d_attributes.x_axis_drive = False
    obj.i3d_attributes.y_axis_drive = False
    obj.i3d_attributes.z_axis_drive = False
    obj.i3d_attributes.drive_position = False
    obj.i3d_attributes.drive_force_limit = 100000.0
    obj.i3d_attributes.drive_spring = 1.0
    obj.i3d_attributes.drive_damping = 0.009999999776482582
    obj.i3d_attributes.breakable_joint = False
    obj.i3d_attributes.joint_break_force = 0.0
    obj.i3d_attributes.joint_break_torque = 0.0

[StjerneIdioten]

I am not entirely sold on this feature being a persistent drop-down menu with a selected value in the UI, since changing any of the parameters technically makes that drop-down wrong in stating that you are on a given preset.

Would it be possible to do something more similar to how Blender itself utilises and shows the presets? An example can be seen in Output Properties --> Format