Replace InetAddress#parseNumericAddress

-Connectivity is becoming a mainline module in S but mainline
modules are not allowed to use non-formal APIs. Thus, replace
non-formal API InetAddress#parseNumericAddress to
InetAddresses#parseNumericAddress.
- Add deprecated method legacyParseIpAndMask() for IpPrefix and
LinkAddress. Because InetAddresses#parseNumericAddress has
a little different behavior in some case, but these two classes
should keep working as before. So these two classes will use
the new deprecated method.

Bug: 181756157
Test: FrameworksNetTests
Change-Id: I1c96b75f0b8d5e93304a39b4a8c8849964e5e810