Optimization for GPU block size determination

This MR optimizes GPU block sizes such that these are always multiples of the hardware's warp (CUDA) or wavefront (HIP) size.

Summarized, this MR

• removes BasicOption GpuOptions.omit_range_check
• removes BasicOption GpuOptions.block_size
• introduces BasicOption GpuOptions.warp_size and implements function for determining default values
• introduces BasicOption assume_warp_aligned_block_size, ensuring the compiler that block sizes match with warp size
• adds new GpuOptions to the data flow of GpuIndexing
• adds algorithm for fitting block size according to iteration space and warp size
• adds fit_block_size and trim_block_size member functions to DynamicBlockSizeLaunchConfiguration for computing block sizes based on a user-defined initial block size and the iteration space
• for assumed alignment: rounds to multiples of warp size when iteration space is unknown to generation time