feat: added ComfyUI

[TimPietrusky]

Motivation

• Added ComfyUI as a backend to use Stable Diffusion

Issues closed

closes #274

[codacy-production[bot]]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
:white_check_mark: +0.92% (target: -1.00%)	:white_check_mark: 97.48%

Coverage variation details

| | Coverable lines | Covered lines | Coverage | | ------------- | ------------- | ------------- | ------------- | | Common ancestor commit (1833379726ca4cdda552d3faeba3faba823c8e08) | 1661 | 1524 | 91.75% | | | Head commit (3b09b0a7b89645208c3ca6769d7c12fb4a540e67) | 1979 (+318) | 1834 (+310) | 92.67% (**+0.92%**) | **Coverage variation** is the difference between the coverage for the head and common ancestor commits of the pull request branch: ` - `

Diff coverage details

| | Coverable lines | Covered lines | Diff coverage | | ------------- | ------------- | ------------- | ------------- | | Pull request (#271) | 318 | 310 | **97.48%** | **Diff coverage** is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: `/ * 100%`

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[TimPietrusky]

:tada: This PR is included in version 1.0.0-alpha.65 :tada:

The release is available on GitHub release

Your semantic-release bot :package::rocket: