74, added modulo operator '%'

Copied changes from repository https://github.com/kwaxi/csvjdbc/
(it has a different directory structure so a simple pull not possible)

Added unit test TestSqlParser.testEvaluateBinaryOperationsModulo
74, regenerate parsing classes with javacc where.jj
Allow encrypted time to be 20x slower in unit test

Unit test TestCryptoFilter.testScrambledFileSpeed sometimes
fails on CloudBees CI server with only 10x slower allowed.

But once again, running performance tests in unit tests is not
a very good idea...
Merge branch 'master' of ssh://git.code.sf.net/p/csvjdbc/code

Conflicts:
	src/main/java/org/relique/jdbc/csv/BinaryOperation.java
	src/main/java/org/relique/jdbc/csv/ExpressionParser.java
	src/main/java/org/relique/jdbc/csv/ExpressionParserConstants.java
	src/main/java/org/relique/jdbc/csv/ExpressionParserTokenManager.java
	src/main/java/org/relique/jdbc/csv/where.jj
	src/test/java/org/relique/jdbc/csv/TestSqlParser.java