add verify namespace

[umangyadav]

clone of #1939

For some reason when i pushed after rebase, it closed earlier PR. I probably messed up rebase

[codecov]

Codecov Report

Merging #1952 (1e256d7) into develop (c4765a6) will not change coverage.
The diff coverage is 0.00%.

❗ Current head 1e256d7 differs from pull request most recent head d70a0d7. Consider uploading reports for the commit d70a0d7 to get more accurate results

@@           Coverage Diff            @@
##           develop    #1952   +/-   ##
========================================
  Coverage    91.37%   91.37%           
========================================
  Files          420      420           
  Lines        15593    15593           
========================================
  Hits         14248    14248           
  Misses        1345     1345           

Impacted Files	Coverage Δ
src/include/migraphx/verify.hpp	56.41% <ø> (ø)
src/verify_args.cpp	0.00% <0.00%> (ø)

[migraphx-bot]

Test	Batch	Rate new d70a0d	Rate old c4765a	Diff	Compare
torchvision-resnet50	64	895.29	895.59	-0.03%	✅
torchvision-resnet50_fp16	64	5,315.66	5,311.25	0.08%	✅
torchvision-densenet121	32	1,126.78	1,126.27	0.04%	✅
torchvision-densenet121_fp16	32	3,280.15	3,282.35	-0.07%	✅
torchvision-inceptionv3	32	592.49	592.81	-0.05%	✅
torchvision-inceptionv3_fp16	32	2,510.85	2,491.98	0.76%	✅
cadene-inceptionv4	16	328.82	329.89	-0.33%	✅
cadene-resnext64x4	16	395.95	395.64	0.08%	✅
slim-mobilenet	64	7,133.35	7,137.84	-0.06%	✅
slim-nasnetalarge	64	159.97	159.97	0.00%	✅
slim-resnet50v2	64	1,089.88	1,090.40	-0.05%	✅
bert-mrpc-onnx	8	719.50	719.09	0.06%	✅
bert-mrpc-tf	1	371.34	370.46	0.24%	✅
pytorch-examples-wlang-gru	1	302.50	302.34	0.05%	✅
pytorch-examples-wlang-lstm	1	309.00	309.30	-0.10%	✅
torchvision-resnet50_1	1	91.95	91.89	0.06%	✅
torchvision-inceptionv3_1	1	129.24	128.93	0.24%	✅
cadene-dpn92_1	1	335.59	336.95	-0.40%	✅
cadene-resnext101_1	1	237.60	237.34	0.11%	✅
slim-vgg16_1	1	53.37	53.39	-0.04%	✅
slim-mobilenet_1	1	1,503.46	1,501.74	0.11%	✅
slim-inceptionv4_1	1	101.52	101.71	-0.19%	✅
onnx-taau-downsample	1	316.65	316.49	0.05%	✅
dlrm-criteoterabyte	1	21.44	21.44	0.00%	✅
dlrm-criteoterabyte_fp16	1	39.98	39.99	-0.05%	✅
agentmodel	1	5,833.42	5,884.19	-0.86%	✅
unet_fp16	2	53.54	53.56	-0.04%	✅

This build is OK for merge ✅

[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:torchvision-inceptionv3_1: PASSED: MIGraphX meets tolerance

🔴cadene-dpn92_1: FAILED: MIGraphX is not within tolerance - check verbose output

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

    :white_check_mark:slim-vgg16_1: PASSED: MIGraphX meets tolerance

    :white_check_mark:slim-mobilenet_1: PASSED: MIGraphX meets tolerance

    :white_check_mark:slim-inceptionv4_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