add buffer constructor without capacity
implemented full rules but not testing
some small features: match in Token, simple Node constructor. Starting testing full rules program
remove unnecessary argument in service tokens
Merge branch 'master' into feature-full-rules
implemented get new Token and test them. Testing empty program
add testing simplest program, fix parse command
add PRINT to rules, lexer, parser. Testing it. Parser was able to parse etalon's program. Only need convert to bite code