Added helper in gyoasm

Ordered cases by BCB value

LIT & JMP opcodes take balanced ternary flags

Housekeeping

Changing jump opcodes to signed bcb

Using signed trits in asm/vm

Created defined for BCB trits

Cleaned up unused functions from gyoemu

Housekeeping

Removed duplicates

Merged BCB into tern

Migrating functions from bcb to tern

Updated README

comparisons for bc15 numbers

add more bc15 functions

/bin/sh compatibility

Removed old signed entry helper

Houeskeeping

Standardized phep

Implement bc15add with test.