[A] Add init codes

[kunkunlin1221]

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[github-actions]

Coverage Report

File	Stmts	Miss	Cover	Missing
chameleon
__init__.py	9	0	100%
chameleon/backbone
__init__.py	16	2	2	88%
gpunet.py	49	2	2	96%
chameleon/efficientdet
__init__.py	1	0	100%
efficientdet.py	17	0	100%
chameleon/metrics
__init__.py	1	0	100%
normalized_levenshtein_similarity.py	49	37	37	24%
chameleon/neck
__init__.py	15	1	1	93%
bifpn.py	86	2	2	98%
fpn.py	68	2	2	97%
chameleon/nn
__init__.py	19	5	5	74%
aspp.py	22	0	100%
block.py	24	0	100%
cnn.py	23	0	100%
dwcnn.py	9	3	3	67%
grl.py	20	0	100%
mbcnn.py	47	0	100%
positional_encoding.py	12	0	100%
selayer.py	17	0	100%
utils.py	99	13	13	87%
vae.py	21	0	100%
chameleon/nn/components
__init__.py	5	0	100%
activation.py	39	4	4	90%
dropout.py	9	1	1	89%
loss.py	85	38	38	55%
norm.py	21	1	1	95%
pooling.py	22	1	1	95%
chameleon/optim
__init__.py	14	8	8	43%
polynomial_lr_warmup.py	24	18	18	25%
warm_up.py	35	26	26	26%
chameleon/tools
__init__.py	4	0	100%
cpuinfo.py	518	307	307	41%
custom_aug.py	59	31	31	47%
mixin.py	29	8	8	72%
model_profile.py	21	12	12	43%
replace.py	25	13	13	48%
chameleon/transformers
__init__.py	27	2	2	93%
basic.py	51	38	38	25%
efficientformer.py	37	9	9	76%
metaformer.py	105	50	50	52%
mobilevit.py	23	7	7	70%
poolformer.py	22	6	6	73%
token_mixer.py	105	79	79	25%
utils.py	17	5	5	71%
vit.py	24	8	8	67%
TOTAL	1945	739	62%

Tests	Skipped	Failures	Errors	Time
104	0 💤	0 ❌	0 🔥	12.384s ⏱️