OpenCL and DPCPP kernel hashing

[kris-rowe]

Description

Closes #422

Updates hashing for the OpenCL and DPCPP backends to be based on the platform and device name, vendor, and version.

[codecov]

Codecov Report

Merging #583 (902358d) into development (9b47900) will increase coverage by 77.27%.
The diff coverage is n/a.

@@               Coverage Diff                @@
##           development     #583       +/-   ##
================================================
+ Coverage             0   77.27%   +77.27%     
================================================
  Files                0      261      +261     
  Lines                0    19531    +19531     
================================================
+ Hits                 0    15092    +15092     
- Misses               0     4439     +4439     

Impacted Files	Coverage Δ
src/occa/internal/utils/trie.tpp	96.77% <0.00%> (ø)
...rc/occa/internal/lang/statement/statementArray.cpp	70.58% <0.00%> (ø)
src/occa/internal/c/types.cpp	78.44% <0.00%> (ø)
src/occa/internal/lang/modes/cuda.cpp	66.12% <0.00%> (ø)
src/occa/internal/lang/expr/dpcppAtomicNode.hpp	0.00% <0.00%> (ø)
src/occa/internal/lang/expr/tupleNode.cpp	52.38% <0.00%> (ø)
include/occa/functional/function.hpp	100.00% <0.00%> (ø)
src/occa/internal/modes/openmp/registration.cpp	77.77% <0.00%> (ø)
src/occa/internal/lang/expr/callNode.cpp	73.68% <0.00%> (ø)
...ca/internal/lang/builtins/attributes/exclusive.cpp	84.61% <0.00%> (ø)
... and 251 more