version 7.7

• added pipe operator |>
• added new syntax for string encodings, and added iso: encoding
• on cx16: added txt.iso() to switch to iso charset
• added @requirezp flag on variables to force them in Zeropage
• added pokemon() function
• fix assembly <-> prog8 label referencing issue (labels in asm no longer start with underscore)
• less aggressive dead code (variables) removal
• fixed some type casting issues
• several small code gen optimizations
• fix broken code generated for certain equality comparison expressions
• several other bugfixes.