RFR: 8193255: Root Certificates should be stored in text format and assembled at build time

[Langer, Christoph]

Hi,

please review the 11u backport of the build facility to assemble the root certificate store (cacerts) at build time from certificates stored in text format. This is a prerequisite to enable easy and straightforward backports of certificate updates from head jdk. This fix will be backported together with JDK-8225392 as the latter one fixes a regression of 8193255.

Bug: https://bugs.openjdk.java.net/browse/JDK-8193255
Original Change: http://hg.openjdk.java.net/jdk/jdk/rev/29ab1f3bd353
Webrev: http://cr.openjdk.java.net/~clanger/webrevs/8193255.11u/

I had to resolve a copyright header diff in make/copy/Copy-java.base.gmk and a context diff in make/ToolsJdk.gmk.

Patch runs successfully through SAP's regression test system.

Thanks
Christoph