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

[Weijun Wang]

Please take a review at

   http://cr.openjdk.java.net/~weijun/8193255/webrev.00/

Please pay attention to the 1st 3 and the last 2 files. Others are PEM files 
for all certs inside the original cacerts.

There is one thing I cannot get correct. If I update the GenerateCacerts.java 
file and rerun make, the cacerts file is unchanged. I thought the following line

   $(GENDATA_CACERTS): $(BUILD_TOOLS) $(GENDATA_CACERTS_SRC)

means when when the tool is changed, GENDATA_CACERTS will be called.

Thanks,
Max