Onehot dyn and refactor

[CharlieL7]

• Creates a ref onehot operator that handles dynamic shapes
• New simplify matcher that replaces the new ref onehot operator with other ops and scatter
• Refactored to use scatter rather than gather for this op
• Added new mode to scatter on ref and gpu to skip out of bounds indices

[migraphx-bot]

Test	Batch	Rate new 6b7482	Rate old a03942	Diff	Compare
torchvision-resnet50	64	1,751.51	1,713.64	2.21%	:white_check_mark:
torchvision-resnet50_fp16	64	4,083.92	3,811.63	7.14%	:high_brightness:
torchvision-densenet121	32	1,471.89	1,454.47	1.20%	:white_check_mark:
torchvision-densenet121_fp16	32	2,525.19	2,432.15	3.83%	:high_brightness:
torchvision-inceptionv3	32	889.71	882.93	0.77%	:white_check_mark:
torchvision-inceptionv3_fp16	32	1,485.10	1,414.78	4.97%	:high_brightness:
cadene-inceptionv4	16	412.62	406.93	1.40%	:white_check_mark:
cadene-resnext64x4	16	419.75	413.66	1.47%	:white_check_mark:
slim-mobilenet	64	4,009.12	3,816.13	5.06%	:high_brightness:
slim-nasnetalarge	64	101.03	97.00	4.15%	:high_brightness:
slim-resnet50v2	64	1,681.76	1,651.31	1.84%	:white_check_mark:
bert-mrpc-onnx	8	617.10	589.49	4.68%	:high_brightness:
bert-mrpc-tf	1	279.72	290.01	-3.55%	:red_circle:
pytorch-examples-wlang-gru	1	321.65	331.98	-3.11%	:red_circle:
pytorch-examples-wlang-lstm	1	292.32	301.70	-3.11%	:red_circle:
torchvision-resnet50_1	1	470.97	454.96	3.52%	:high_brightness:
cadene-dpn92_1	1	246.31	244.72	0.65%	:white_check_mark:
cadene-resnext101_1	1	199.40	189.06	5.47%	:high_brightness:
onnx-taau-downsample	1	206.53	204.08	1.20%	:white_check_mark:
dlrm-criteoterabyte	1	22.92	22.27	2.91%	:white_check_mark:
dlrm-criteoterabyte_fp16	1	42.66	41.57	2.64%	:white_check_mark:
agentmodel	1	6,298.58	6,009.87	4.80%	:high_brightness:
unet_fp16	2	34.19	33.46	2.17%	:white_check_mark:
resnet50v1_fp16	1	586.24	553.42	5.93%	:high_brightness:
resnet50v1_int8	1	579.50	463.87	24.93%	:high_brightness:
bert_base_cased_fp16	64	646.45	620.51	4.18%	:high_brightness:
bert_large_uncased_fp16	32	199.05	193.82	2.70%	:white_check_mark:
bert_large_fp16	1	117.26	103.87	12.89%	:high_brightness:
distilgpt2_fp16	16	1,212.37	1,155.49	4.92%	:high_brightness:
yolov5s	1	302.46	298.89	1.19%	:white_check_mark:
tinyllama	1	23.33	23.33	0.01%	:white_check_mark:
vicuna-fastchat	1	134.21	132.40	1.37%	:white_check_mark:
whisper-tiny-encoder	1	244.34	241.13	1.33%	:white_check_mark:
whisper-tiny-decoder	1	256.72	245.64	4.51%	:high_brightness:

This build is not recommended to merge :red_circle:

[migraphx-bot]

     :white_check_mark: bert-mrpc-onnx: PASSED: MIGraphX meets tolerance

     :white_check_mark: bert-mrpc-tf: PASSED: MIGraphX meets tolerance

     :white_check_mark: pytorch-examples-wlang-gru: PASSED: MIGraphX meets tolerance

     :white_check_mark: pytorch-examples-wlang-lstm: PASSED: MIGraphX meets tolerance

     :white_check_mark: torchvision-resnet50_1: PASSED: MIGraphX meets tolerance

     :white_check_mark: cadene-dpn92_1: PASSED: MIGraphX meets tolerance

     :white_check_mark: cadene-resnext101_1: PASSED: MIGraphX meets tolerance

     :white_check_mark: dlrm-criteoterabyte: PASSED: MIGraphX meets tolerance

     :white_check_mark: agentmodel: PASSED: MIGraphX meets tolerance

     :white_check_mark: unet: PASSED: MIGraphX meets tolerance

     :white_check_mark: resnet50v1: PASSED: MIGraphX meets tolerance

     :white_check_mark: bert_base_cased_fp16: PASSED: MIGraphX meets tolerance

:red_circle:bert_large_uncased_fp16: FAILED: MIGraphX is not within tolerance - check verbose output

     :white_check_mark: bert_large: PASSED: MIGraphX meets tolerance

     :white_check_mark: yolov5s: PASSED: MIGraphX meets tolerance

     :white_check_mark: tinyllama: PASSED: MIGraphX meets tolerance

     :white_check_mark: vicuna-fastchat: PASSED: MIGraphX meets tolerance

     :white_check_mark: whisper-tiny-encoder: PASSED: MIGraphX meets tolerance

     :white_check_mark: whisper-tiny-decoder: PASSED: MIGraphX meets tolerance

     :white_check_mark: distilgpt2_fp16: PASSED: MIGraphX meets tolerance

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 91.97%. Comparing base (206e0fd) to head (6b74824). Report is 143 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #3011      +/-   ##
===========================================
+ Coverage    91.94%   91.97%   +0.02%     
===========================================
  Files          489      489              
  Lines        19333    19390      +57     
===========================================
+ Hits         17776    17833      +57     
  Misses        1557     1557              

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