always build in debug mode with sanitizers + increase compiler warning levels

[superwhiskers]

currently, the usage of address sanitizer is gated behind RESOLVE_USE_ASAN. as suggested in another pull request i propose we:

• increase the number of sanitizers we enable to those enabled by -fsanitize=address,undefined,integer to check for undefined behavior and integer overflow, in addition to the memory safety problems checked by address sanitizer
• enable these sanitizers in automated tests (such as those being added by Add ctest to spack build pipelines. #118) and when building in debug mode (-DCMAKE_BUILD_TYPE=Debug)

additionally, i propose we increase the warnings reported by the compiler by passing -Wall -Wpedantic -Wconversion -Wextra to CFLAGS/CXXFLAGS in all build types