sjasmplus v1.17.0

• STRUCT has new TEXT pseudo-instruction to define "DB-like" data
• STRUCT initializer block can be now multi-line (when correctly enclosed in curly braces)
• EQU now allows for optional override of page number assigned to the new symbol
• new $$$ and $$$$ operators to retrieve "physical" address/page inside DISP block
• instruction out (c),0 now emits warning (can be suppressed by the "; ok" comment)
• fixed listing of structures using long BLOCK fields (machine code was correct, but listing not)
• fixed some memory leaks, undefined behaviour and unaligned memory access