First commit for zxpentevo computer.ö
Add macros for page settings. Fixed swith pages in crt0.s, main.c and zxpentevo.s.Î
Change unknown init code (crt0.s) :

; Corrupt code
	ld hl, #s__INITIALIZER
	ld de, #s__COMMONMEM
	ld bc, #l__COMMONMEM
	ldir

; MUST BE!
	ld	bc, #l__INITIALIZER
	ld	a, b
	or	a, c
	jr	Z, gsinit_next
	ld	de, #s__INITIALIZED
	ld	hl, #s__INITIALIZER
	ldir
gsinit_next:
Pentevo port for 1Mbyte for tasks and 64Kbytes for kernel.

Using pages 0,5,2,1 - for kernel (4 pages = 64K)
User tasks pages - 128..191 (64 pages = 1Mbyte)
Delete FD device and add SD device.
:Update other files to last version.
Config multitasking.
Z-Conrtoller SD-card suport.. Multitasking not works..:
Store shadow mode in SD-card driver
correct PTABSIZE
Correct page switcher.
Merge https://github.com/salextpuru/FUZIX

Conflicts:
	Kernel/platform-zx128/crt0.s
	Library/include/dirent.h