HWRenderer: Only reload the framebuffer from gpu memory if the hw renderer is in use during a breakpoint

shader_jit: Replace two MDisp usages with MatR

Shader: RCP and RSQ computes only the 1st component

Shader: Implement DPH and DPHI in interpreter/JIT

HWRenderer: Only reload the framebuffer from gpu memory if the hw renderer is in use during a breakpoint.

emitter: Remove pointer casts

Kernel: Correct(er) handling of Heap and Linear Heap allocations

Tests revealed that the component with w=1 is
SRC1 and not SRC2, it is now fixed on 3dbrew.

This should also technically silence quite a few ubsan warnings.

emitter: Minor cleanup

Functions implemented in a class definition are already implicitly inline.

Fix building under MinGW

Shader: Implement SGE, SGEI and SLT in interpreter/JIT

Improvements for MRU

avoid duplicates
always put the last file loaded to top of the list

GPU: Implement TextureCopy-mode display transfers

Shader: Save caller-saved registers in JIT before a CALL

Shader: Implement EX2 and LG2 in interpreter/JIT

Add coding style about includes

videocore: Added RG8 texture support

Update boost external to v1.59.0