Normalized handling of ticks in SDL according to the Web version implementation.

Created a series of new structures including the `PaletteInfo` one.

We still need to add more palettes from the Web frontend.

To avoid 0x0 characters in ROM title.

Uses the `build.rs` file to generate compile time information about the build environment.
This information is exposed to the WASM environment through interface methods that are then used by the `Emulator` interface.

This reverts commit e252646f.

Adds an extra EOL.

Theme stored in `localStorage`