Convert class templates to Kokkos memory spaces

[streeve]

Convert all class template parameters to memory space rather than device type to close #407.

• Convert classes
• Add explicit execution space class methods (pass default exec space for existing methods)
• Default device typedefs deprecated.
• Deprecation warning emitted when device type passed
• Examples and tests updated accordingly (Note only the comm plan used the device type explicitly in tests - the rest already used memory spaces)

[kwitaechong]

can you please explain why template classes on Memoryspace and function on ExecutiionSpace?

[streeve]

Overall, we only need the memory space to store the class Views, then the execution space to execute the member functions kernels (except in a few very specific instances). This mostly clarifies what’s needed where and when we use the default I mentioned in the comment above

[streeve]

Failures unrelated