Light modifiable model for project/module, and async commit model

[VISTALL]

We have two api for creating project:

• NewModuleBuilder/NewModuleBuilderProcessor
• ModuleImportProvider

While processing both of the require call commit methods for commit data, and all that must be in write thread.

Idea - create light/modifiable model for project/module. There no need dispose/commit them by default.

That looks like ExternalSystemAPI - but it's use original modifiable api, and commit per update ssesions for libraries/etc - and can provide ui thread multiple lag.

For example

ProjectBuilder project = ProjectBuilder.newDirBased(dir)

ModuleBuilder module = project.getRootModule();
module.withName(.....)
module.withEnabledExtension(JavaModuleExtension.class, ex -> {
})


ProjectCommitService.....commitAsync(project)

Artifact model can be changed without any issues -since they not provide index, and never change project model