Support SNP system

Following is the basic usage.

Environment{
	Membrane a{
		Object a^2,b^2;
		
		Rule r1= a*/ a^2 -> ( a, go b);
		Rule r2= b(b)*/ b -> ( b, go all);

		Tunnel b,c;
	}
	
	Membrane b{
	}
	
	Membrane c{
	}
}

Speed up fetching conditions

Speed up fetching conditions while conditions can be fetched more than one time

Results record can be disabled

1.0.3

Historical results can be disabled

Support Maximum Priority Condition

1.0.2

Fix bug: cannot enable info log

Improve used rule output efficiency

1.0.1

Improve used rules output efficiency.

UPSimulator v1.0

Support tissue-like P system and cell-like P system.