Create package.html Javadoc files for ESAPI packages where it is missing #615

Need 'package.html' for the following packages:

• org.owasp.esapi.codecs.ref
• org.owasp.esapi.configuration
• org.owasp.esapi.configuration.consts
• org.owasp.esapi.logging.appender
• org.owasp.esapi.logging.cleaner
• org.owasp.esapi.logging.log4j
• org.owasp.esapi.logging.slf4j
• org.owasp.esapi.reference.accesscontrol
• org.owasp.esapi.reference.accesscontrol.policyloader

And some of the links in the one for org.owasp.esapi are badly out of date and need updating.