…#453)

* Update CMakeLists.txt

* Add iomanip header in test suite

* Isolate dependencies on test suite headers

* Add openmp and remove imagemagick deps

* minor fix

* Major cmake cleanup

* HIP cmake uncomment code

* Revert endif(RPP_FOUND) to ensure CI detects tests

* Fix HOST and HIP CMake

* Include array

* Add misc tests to ctest

* Clarify case_list --help for HOST

* Clarify case_list --help for HIP

* Add omp include to misc header

* Fix CI warning

* CMake OpenMP linking fixes

* Add deps checks in test_suite outer CMake

* Rename 'test type' to 'test set', and 'RPP ctest' to 'RPP-ctest'

* Fix CMake comments

* Clarify names 'HOST test set' and 'HIP test set'

* Update README.md to specify optional imagemagick usage

---------

Co-authored-by: Kiriti Gowda <kiritigowda@gmail.com>
Co-authored-by: HazarathKumarM <hazarathkumar@multicorewareinc.com>