Fix #141 - Fix IPv6 handling in Via header for IPv6 with zero compression

[teerapap]

Changes in detail

• Implement consumeHost() method in SipParser loosely based on RFC 3261
• Fix typo in method name consumeSentBye() -> consumeSentBy()
• Refactor consumeVia() method to make use of consumeSentBy()
• Refactor consumeSentBy() method to make use of consumeHost()
• Improve consumeGenericParam() method to loosely handle host in addition to token
• Add unit tests for IPv6 address with zero compression for Via header

[teerapap]

Just found that some other tests fails. Will resubmit the pull request again

[teerapap]

False alarm. It does not relate to this pull request changes.

Some tests failed because I was using JDK17 running mvn test.
It was about java reflection stuff.

Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make protected final java.lang.Class java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int,java.security.ProtectionDomain) throws java.lang.ClassFormatError accessible: module java.base does not "opens java.lang" to unnamed module @58651fd0
	at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:354)
	at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297)
	at java.base/java.lang.reflect.Method.checkCanSetAccessible(Method.java:199)
	at java.base/java.lang.reflect.Method.setAccessible(Method.java:193)
	at org.mockito.cglib.core.ReflectUtils$2.run(ReflectUtils.java:57)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:318)
	at org.mockito.cglib.core.ReflectUtils.<clinit>(ReflectUtils.java:47)
	... 50 more