Nodes-FaceTools (FaceIdentifier, FaceOff, FaceMask) (#4576)

* node-FaceTools

* Added more documentation for facetools

* invert FaceMask masking

- FaceMask had face protected and surroundings change by default (face white, else black)
- Change to how FaceOff/others work: the opposite where surroundings protected, face changes by default (face black, else white)

* reflect changed facemask behaviour in docs

* add FaceOff+FaceMask workflows

- Add FaceOff and FaceMask example workflows to docs/workflows

* add FaceMask+FaceOff workflows to exampleworkflows.md

- used invokeai URL paths mimicking other workflow URLs, hopefully they translate when/if merged

* inheriting, typehints, black/isort/flake8

- modified FaceMask and FaceOff output classes to inherit base image, height, width from ImageOutput
- Added type annotations to helper functions, required some reworking of code's stored data

* remove credit header

- Was in my personal/repo copy, don't think it's necessary if merged.

* Optionals & image declaration duplication

- Added Optional[] to optional outputs and types
- removed duplication of image = context.services.images.get_pil_images(self.image.image_name) declaration
- Still need to find a way to deal with mask_pil None typing errors

* face(facetools): fix typing issues, add validation, clean up structure

* feat(facetools): update field descriptions

* Update FaceOff_FaceScale2x.json

- update FaceOff workflow after Bounded Image field removed in place of inheriting Image out field from ImageOutput

* feat(facetools): pass through original image on facemask if invalid face ids requested

* feat(facetools): tidy variable names & fn calls

* feat(facetools): bundle inter font, draw ids with it

Inter is a SIL Open Font license. The license is included and is fully permissive. Inter is the same font the UI and commercial application already uses.

Only the "regular" version is bundled.

* chore(facetools): isort & fix mypy issues

* docs(facetools): update and format docs

---------

Co-authored-by: Millun Atluri <millun.atluri@gmail.com>
Co-authored-by: Millun Atluri <Millu@users.noreply.github.com>
Co-authored-by: psychedelicious <4822129+psychedelicious@users.noreply.github.com>

docs/nodes/communityNodes.md

@@ -10,18 +10,6 @@ To use a community workflow, download the the `.json` node graph file and load i
 
 --------------------------------
 
-### FaceTools
-
-**Description:** FaceTools is a collection of nodes created to manipulate faces as you would in Unified Canvas. It includes FaceMask, FaceOff, and FacePlace. FaceMask autodetects a face in the image using MediaPipe and creates a mask from it. FaceOff similarly detects a face, then takes the face off of the image by adding a square bounding box around it and cropping/scaling it. FacePlace puts the bounded face image from FaceOff back onto the original image. Using these nodes with other inpainting node(s), you can put new faces on existing things, put new things around existing faces, and work closer with a face as a bounded image. Additionally, you can supply X and Y offset values to scale/change the shape of the mask for finer control on FaceMask and FaceOff. See GitHub repository below for usage examples.
-
-**Node Link:** https://github.com/ymgenesis/FaceTools/
-
-**FaceMask Output Examples** 
-
-![5cc8abce-53b0-487a-b891-3bf94dcc8960](https://github.com/invoke-ai/InvokeAI/assets/25252829/43f36d24-1429-4ab1-bd06-a4bedfe0955e)
-![b920b710-1882-49a0-8d02-82dff2cca907](https://github.com/invoke-ai/InvokeAI/assets/25252829/7660c1ed-bf7d-4d0a-947f-1fc1679557ba)
-![71a91805-fda5-481c-b380-264665703133](https://github.com/invoke-ai/InvokeAI/assets/25252829/f8f6a2ee-2b68-4482-87da-b90221d5c3e2)
-
 --------------------------------
 ### Ideal Size