hipSPARSE 3.1.1 for ROCm 6.2.0

Additions

• Added missing hipsparseCscGet() routine

Changes

• All internal hipSPARSE functions now exist inside a namespace
• Match deprecations found in cusparse 12.x.x when using cusparse backend.

Fixes

• Fixed SpGEMM and SpGEMM_reuse routines which were not matching cuSPARSE behaviour

Optimizations

• Improved user manual
• Improved contribution guidelines

Known issues

• In hipsparseSpSM_solve(), we currently pass the external buffer as a parameter. This does not match the cuSPARSE API and this extra external buffer parameter will be removed in a future release. For now this extra parameter can be ignored and nullptr passed as it is unused internally by hipsparseSpSM_solve().