Both encode and deocde methods support message compression which is
described in RFC1035 section 4.1.4. We can leverage both methods in
a follow-up CL to parse DHCPv4 option 119 and DNSSL RA option.
This cl also adds maxLabelCount argument for DnsRecordParser#parseName
to prevent the potential recursion from overflowing the stack.
Bug: 189865016
Test: atest NetworkStaticLibTests
Change-Id: I624649c224f141848a475ac85c56012d138c5224
cece401526