Log4J Removal (ESAPI#714)

Close issue ESAPI#534 - This is a planned removal of all Log4J 1 dependencies after nearly 2 years of deprecation. The release for this will be released on or shortly after 2022-07-13.

* Suppression cleanup

Clearing log4j1 suppressions from baseline.  Should cause maven site
goal to fail if cleanup is not incomplete.

* Log4J 1.x Source & Dependency Removal

Removing baseline code & tests pertaining to log4j 1.x support.

Removing log4j 1.x dependency from pom.

* WAF Cleanup - Removing customized Log handling

AppGuardianConfiguration had a declaration of a log4j log Level class
which appears to never be used.

ESAPIWebApplicationFirewallFilter attempts to compliment/override a
pre-existing log4j1.x configuratino through the filterConfig with an
expectation that ESAPI is configured for that Logger explicitly.
   * This has just been removed to allow the implementation to use the
     ESAPI Logger as configured.

* Removing ant-javadoc.xml artifact

Javadocs are generated in the maven build through the javadoc maven
plugin.

* log4j 1.x configuration file removal

Remvoing log4j.dtd and log4j.xml instances from baseline.

* log4j 1.x - Removing references in properties

Cleaning up source and test references to the removed content.

* log4j 1.x cleanup - scripts

Removing log4j class contexts from the release process scripts.

* JAVADOC CLEANUP

Addressing warnings in javadoc generation.
  * Case sensitivity addressed in SecurityConfiguration.
  * Removed invalid class reference from Logger. This would have been an
    update; however, the reference point no longer fufills the reason
    for the initial link.

This commit is superfluous to the log4j1.x removal intention of the
branch where it was committed.

* Merging suppressions file

* Version updates

Applying the latest plugin and dependency versions.

* Comment Grammer cleanup.

PR feedback.

Author: jeremiahjstacey

ant-javadoc.xml

@@ -66,9 +66,6 @@ ESAPI.Encryptor=org.owasp.esapi.reference.crypto.JavaEncryptor
 ESAPI.Executor=org.owasp.esapi.reference.DefaultExecutor
 ESAPI.HTTPUtilities=org.owasp.esapi.reference.DefaultHTTPUtilities
 ESAPI.IntrusionDetector=org.owasp.esapi.reference.DefaultIntrusionDetector
-# Log4JFactory Requires log4j.xml or log4j.properties in classpath - http://www.laliluna.de/log4j-tutorial.html
-# Note that this is now considered deprecated!
-#ESAPI.Logger=org.owasp.esapi.logging.log4j.Log4JLogFactory
 ESAPI.Logger=org.owasp.esapi.logging.java.JavaLogFactory
 # To use the new SLF4J logger in ESAPI (see GitHub issue #129), set
 #    ESAPI.Logger=org.owasp.esapi.logging.slf4j.Slf4JLogFactory