added tokenization for reserve and release

lexicalStructure.lex

@@ -43,6 +43,8 @@
 &		{printf("AND		%s, Token %d\n",yytext, AND);}		//return AND
 \|		{printf("OR		%s, Token %d\n",yytext, OR);}		//return OR
 \.		{printf("DOT		%s, Token %d\n",yytext, DOT);}		//return DOT
+"reserve"	{printf("RESERVE	%s, Token %d\n",yytext, RESERVE);}	//return RESERVE
+"release" 	{printf("RELEASE	%s, Token %d\n",yytext, RELEASE);}	//return RELEASE