[Core] Adds wrapMemory

[dmed256]

Description

Adds a device.wrapMemory() method for better interoperability with backends. Should fix CEED/libCEED#678

Note: This consolidates some utility methods that were moved to the internal API

• occa::cpu::wrapMemory
• occa::opencl::wrapMemory
• occa::cuda::wrapMemory

[codecov]

Codecov Report

Merging #435 (994446b) into main (c3a80d5) will increase coverage by 0.01%.
The diff coverage is 69.38%.

@@            Coverage Diff             @@
##             main     #435      +/-   ##
==========================================
+ Coverage   76.48%   76.49%   +0.01%     
==========================================
  Files         248      249       +1     
  Lines       18889    18901      +12     
==========================================
+ Hits        14447    14459      +12     
  Misses       4442     4442              

Impacted Files	Coverage Δ
include/occa/core/base.tpp	100.00% <ø> (ø)
include/occa/core/memory.hpp	100.00% <ø> (ø)
src/c/memory.cpp	100.00% <ø> (ø)
src/core/base.cpp	71.18% <0.00%> (-2.96%)	⬇️
src/core/memory.cpp	71.00% <ø> (-0.37%)	⬇️
src/occa/internal/core/device.hpp	0.00% <ø> (ø)
src/c/base.cpp	88.54% <23.07%> (-6.14%)	⬇️
src/core/device.cpp	90.87% <90.90%> (+<0.01%)	⬆️
include/occa/core/device.tpp	100.00% <100.00%> (ø)
src/c/device.cpp	95.31% <100.00%> (+7.12%)	⬆️
... and 6 more