chore: Fixed conda upload job

[frgfm]

This PR aims at:

• fixing import order
• updating installation instructions
• fixing conda recipe
• added conda upload workflow

[codecov-io]

Codecov Report

Merging #11 into master will not change coverage by %.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master      #11   +/-   ##
=======================================
  Coverage   89.10%   89.10%           
=======================================
  Files           8        8           
  Lines         468      468           
=======================================
  Hits          417      417           
  Misses         51       51           

Impacted Files	Coverage Δ
torchscan/crawler.py	80.43% <100.00%> (ø)
torchscan/modules/flops.py	99.00% <100.00%> (ø)
torchscan/modules/macs.py	100.00% <100.00%> (ø)
torchscan/modules/memory.py	99.00% <100.00%> (ø)