* Revert `del /Q /F` windows mod.

Minor build improvements

Initially Windows-only.

Running from RAM should be done via `.srodata` so that the compiler will properly relocate larger jumps.

Add instructions for building libgcc.a and update the binary. Fixes #74.

Add SPI OLED example and refactor OLED driver to be common for I2C and SPI transport

Better wch managment and bits

also check if the target is connected, instead of reading nonsense in the void
and cherry on top, check for -h flag at the top to avoid plugging something to get help

Signed-off-by: bmx <none>

Allow expressions to be passed to Delay_Ms and Delay_Us.

The new libgcc.a is built using the provided instructions using
7f8b34c01dd806e49e0538b2d3779f753963e774 revision of the RISC-V toolchain.