[8] Code Review Request for 8005117: Eliminate dependency from ConfigSpiFile to com.sun.security.auth.login.ConfigFile

[Sean Mullan]

For JEPs 161 and 162, we need to remove or deprecate undesirable 
dependencies from the compact1 profile.

One of these is the dependency on com.sun.security.auth.login.ConfigFile 
from sun.security.provider.ConfigSpiFile.

The proposed fix moves the guts of the ConfigFile implementation to 
sun.security.provider.ConfigSpiFile, and changes ConfigFile such that it 
is simply a wrapper around ConfigSpiFile.

webrev: http://cr.openjdk.java.net/~mullan/webrevs/8005117/webrev.00/
bug: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=8005117

I've added the noreg-cleanup label to the bug since no new functionality 
is being added.

Thanks,
Sean