Add CUDA tests to main

[EmilyBourne]

my understanding that this will be the main development repo for cuda/Gpu.

and this Pr is for activating the tests. then the next step now is merging cuda_main_temp here?

That is correct. The branch master will be the equivalent of cuda_main, development will be the equivalent of cuda_dev. If you haven't added anything to cuda_dev yet then yes the next stage is to merge cuda_main_temp into cuda_main

[EmilyBourne]

@bauom this PR passes codacy's checks. It seems that they are not correctly reported because this is a fork and the head has not been checked by codacy on this repo. After you accept the PR I will force merge it to get around this problem

[codacy-production[bot]]

Coverage summary from Codacy

Merging #1 (70a9590945684f7fc6e9c9cdfcd0bdfb09600a4c) into master (b0ad67408039d8598d89f1f464dc162913588b68) - See PR on Codacy

Coverage variation	Diff coverage
-0.72%	∅

Coverage variation details

| | Coverable lines | Covered lines | Coverage | | ------------- | ------------- | ------------- | ------------- | | Common ancestor commit (b0ad67408039d8598d89f1f464dc162913588b68) | 16589 | 13713 | 82.66% | | | Head commit (70a9590945684f7fc6e9c9cdfcd0bdfb09600a4c) | 16003 (-586) | 13113 (-600) | 81.94% (**-0.72%**) | **Coverage variation** is the difference between the coverage for the head and common ancestor commits of the pull request branch: ` - `

Diff coverage details

| | Coverable lines | Covered lines | Diff coverage | | ------------- | ------------- | ------------- | ------------- | | Pull request (#1) | 0 | 0 | **∅ (not applicable)** | **Diff coverage** is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: `/ * 100%`

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