Long CLIP L support for SDXL, SD3 and Flux. #165

Job	Run time
test-unix-nightly (macos, 3.11, 12.1, nightly)	9m 24s
test-stable (macos, 3.9, 12.1, stable)	8m 56s
test-unix-nightly (linux, 3.11, 12.1, nightly)	5m 57s
test-stable (macos, 3.10, 12.1, stable)	9m 0s
test-win-nightly (windows, 3.9, 12.1, nightly)	3m 46s
test-stable (macos, 3.11, 12.1, stable)	8m 59s
test-win-nightly (windows, 3.10, 12.1, nightly)	3m 49s
test-stable (macos, 3.12, 12.1, stable)	8m 59s
test-win-nightly (windows, 3.11, 12.1, nightly)	3m 52s
test-stable (linux, 3.9, 12.1, stable)	6m 0s
test-win-nightly (windows, 3.12, 12.1, nightly)	4m 0s
test-stable (linux, 3.10, 12.1, stable)	6m 1s
test-stable (linux, 3.11, 12.1, stable)	6m 4s
test-stable (linux, 3.12, 12.1, stable)	6m 4s
test-stable (windows, 3.9, 12.1, stable)	3m 35s
test-stable (windows, 3.10, 12.1, stable)	3m 42s
test-stable (windows, 3.11, 12.1, stable)	3m 36s
test-stable (windows, 3.12, 12.1, stable)	3m 37s
	1h 45m 21s

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