Adds a bunch of import methods

Yes I did do this code all myself and they have been looked over and modified since proposed to other addons.

The commented MMD animation importer is stashed as a comment for now till an MMD animation importer is properly created.

core/import_dictionary.py

@@ -0,0 +1,45 @@
+import importlib.util
+import bpy
+import os
+import typing
+
+if importlib.util.find_spec("io_scene_valvesource") is not None:
+    #from .....scripts.addons.io_scene_valvesource.import_smd import SmdImporter #<- use this to check if your IDE is working properly. idfk
+    from io_scene_valvesource.import_smd import SmdImporter #ignore IDE bitching this is fine, trust me, also above comment should be okay to an IDE usually if set up right. ^_^ - @989onan
+
+def import_multi_files(method = None, directory: typing.Optional[str] = None, files: list[dict[str,str]] = None, filepath: typing.Optional[str] = ""):
+    if not files:
+        method(directory, filepath)
+    else:
+        for file in files:
+            fullpath = os.path.join(directory,os.path.basename(file["name"]))
+            print("run method!")
+            method(directory, fullpath)
+#each import should map to a type. even in the case that multiple methods should import together, or have the same import method. Make sure the lambdas match so they get grouped together
+#In the case of a file importer that takes only one file argument and each one needs individual import, use above method. (example of it in use is ".dae" format)
+import_types: dict[str, typing.Callable[[str, list[dict[str,str]], str], None]] = {
+    "fbx": (lambda directory, files, filepath : bpy.ops.import_scene.fbx(files=files, directory=directory, filepath=filepath,automatic_bone_orientation=False,use_prepost_rot=False,use_anim=False)),
+    "smd": (lambda directory, files, filepath : eval("bpy."+SmdImporter.bl_idname+".(files=files, directory=directory, filepath=filepath)")),
+    "dmx": (lambda directory, files, filepath: eval("bpy."+SmdImporter.bl_idname+".(files=files, directory=directory, filepath=filepath)")),
+    "gltf": (lambda directory, files, filepath : bpy.ops.import_scene.gltf(files=files, filepath=filepath)),
+    "glb": (lambda directory, files, filepath : bpy.ops.import_scene.gltf(files=files, filepath=filepath)),
+    "qc": (lambda directory, files, filepath : eval("bpy."+SmdImporter.bl_idname+".(files=files, directory=directory, filepath=filepath)")),
+    "obj": (lambda directory, files, filepath : bpy.ops.wm.obj_import(files=files, directory=directory, filepath=filepath)),
+    "dae": (lambda directory, files, filepath : import_multi_files(directory=directory, files=files, filepath=filepath, method = (lambda directory, filepath:  bpy.ops.wm.collada_import(filepath=filepath, auto_connect = True, find_chains = True, fix_orientation = True)))),
+    "3ds": (lambda directory, files, filepath : bpy.ops.import_scene.max3ds(files=files, directory=directory, filepath=filepath)),
+    "stl": (lambda directory, files, filepath : bpy.ops.import_mesh.stl(files=files, directory=directory, filepath=filepath)),
+    "mtl": (lambda directory, files, filepath : bpy.ops.wm.obj_import(files=files, directory=directory, filepath=filepath)),
+    "x3d": (lambda directory, files, filepath : bpy.ops.import_scene.x3d(files=files, directory=directory, filepath=filepath)),
+    "wrl": (lambda directory, files, filepath : bpy.ops.import_scene.x3d(files=files, directory=directory, filepath=filepath)),
+    "vmd": (lambda directory, files, filepath : import_multi_files(directory=directory, files=files, filepath=filepath, method = (lambda directory, filepath: bpy.ops.tuxedo.import_mmd_animation(directory=directory, filepath=filepath)))),
+    "pmx": (lambda directory, files, filepath : bpy.ops.mmd_tools.import_model(files=files, directory=directory, filepath=filepath)),
+    "pmd": (lambda directory, files, filepath : bpy.ops.mmd_tools.import_model(files=files, directory=directory, filepath=filepath)),
+}
+
+def concat_imports_filter(imports):
+    names = ""
+    for importer in imports.keys():
+        names = names+"*."+importer+";"
+    return names
+
+imports = concat_imports_filter(import_types)