Support for/Add CUDA 11.1

[maleadt]

Needs an updated CUDNN version before we can release this.

[codecov]

Codecov Report

Merging #445 into master will increase coverage by 0.07%.
The diff coverage is 83.33%.

@@            Coverage Diff             @@
##           master     #445      +/-   ##
==========================================
+ Coverage   79.03%   79.11%   +0.07%     
==========================================
  Files         170      170              
  Lines        9281     9282       +1     
==========================================
+ Hits         7335     7343       +8     
+ Misses       1946     1939       -7     

Impacted Files	Coverage Δ
deps/compatibility.jl	92.72% <ø> (ø)
deps/discovery.jl	70.81% <ø> (ø)
deps/bindeps.jl	84.57% <83.33%> (+1.81%)	⬆️
lib/cublas/CUBLAS.jl	80.30% <0.00%> (+3.03%)	⬆️
lib/curand/random.jl	92.30% <0.00%> (+3.07%)	⬆️

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