CPCEC, ZXSEC and CSFEC

What's New:

twenty-fourth public release. MSXEC is a new MSX emulator supporting the first three generations (1983 MSX, 1985 MSX2 and 1988 MSX2+), their Western Digital-based disc drives and some few additional devices (such as the Konami SCC-051649 sound chip and the JIS 128/256K external ROMs) although the emulation is less developed in some fields than others (VDP timings are inaccurate: Logon System's intro "IO" shows artifacts in the 3D scrollers and the final screen; the MSX-MUSIC interface is minimal, barely able to play notes). Fixed bugs in the Z80 (such as bad inner timings in EX HL,(SP) and EX IX,(SP) detected by Kio's "Z80 Test Programm"), the CRTC (VSYNC loss in the dancing bobs of "PhX" on CRTC4, misaligned HSYNC in Longshot's RV.BAS), the ULA ("snow" in 128K models can leak from different banks than VRAM), the VIC-II ("Super Stock Car" switched the video display off when it shouldn't) and the SID (L-Man's "Amazing Discoveries" failed to play samples; "Mazemania" got weak random values from ports 27 and 28). Added 1088K and 2112K RAM modes to CPCEC (the first version of "Still the One" needed 1024K to run) and REU/GeoRAM RAM extensions (up to 512K) to CSFEC. Code cleanup in several modules, turning repeated paragraphs into several "goto" pointing to a single paragraph and merging several lists into a single table. Streamlined video and audio filters, the former removing the "Half scanlines" video mode and adding two new options: "Microwave static" that adds randomised noise to the image and "Narrow X-Blending" that softens the effect of the X-blending option. CSFEC now has an explicit "Play tape" option instead of autoplay: some titles rely on the user pressing PLAY and STOP on the tape deck ("Super Space Invaders"). Snapshots in CSFEC and MSXEC are optionally compressed with a quick implementation of Emmanuel Marty's LZSA2 method. The user can set whether the screenshots are BMP (default) or QOI files. Removed the Spanish documentation due to lack of readers.