Solids - add summary output for number of KSP its and throughput

Doc - document QFunction source requirements for single source

Solids - small fixes for CUDA compilation

make style

add make tidy flags for hip backend

Merge pull request #586 from CEED/jeremy/cuda-assemble-add

CUDA - Fix Backend Setting LinearAssemble*

update LinearAssemble* names to match PR #586

Style - update backend operator function names to use Add as needed

CUDA - change LinearAssemble* to LinearAssembleAdd* when setting backend function

Merge pull request #583 from CEED/jeremy/cuda-norms

CUDA Vector Norm on Device

update with changes from cuda-ref

Merge branch 'main' into natalie/hip-ref-v2

CUDA - add macro to clean up cublasGetErrorName function

CUDA - separate CeedCudaGetCublasHandle logic as independent funtion

CUDA - add on device vector norms for CUDA backends

Fortran - visually divide Fortarn interface file to make it easier to navigate

Fortran - improve check for previously destroyed object, can't decrement automatically

Fortran - guard double calls to ceed*destroy in Fortran interface

Merge pull request #584 from CEED/jeremy/python-diag

Python - add operator diagonal assembly to the python interface

Tests - update test descriptions

Python - fix bad docstring copy-paste

Python - add operator diagonal assembly to the python interface

codecov: set default branch

Merge pull request #580 from CEED/jed/rename-master-to-main

Rename master branch to main

Rename master branch to main

Also revise master/slave terminology in description of non-conforming meshes.