DeploymentRuleset: add matching logic for rules

[sclassen]

Implement matching of rules according to https://docs.oracle.com/javase/10/deploy/deployment-rule-set.htm#GUID-413F29CF-81B5-4154-9C52-22D993819C2B

In the class net.adoptopenjdk.icedteaweb.deploymentrules.Rule there is a TODO in the method matches.

Please add the missing implementation and also include tests.

Inspiration can be drawn from the class ParsedWhitelistEntry

Decide how to react if a rule has any of the following elements or attributes set:

• title
• certificate
• checksum
• jnlp-checksum