[8u] TLSv1.3 RFR: 8245477: Adjust TLS tests location

[Alexey Bakhtin]

Please review changes required to backport TLSv1.3 protocol from JDK11.0.7 to JDK8u

JBS task: https://bugs.openjdk.java.net/browse/JDK-8245477
Webrev: http://cr.openjdk.java.net/~abakhtin/tls1.3/8245466/8245477/webrev.v0/

This is a first part of TLS test update.
JDK11 and JDK8 has a different directory structure for TLS related tests. As result it is easy to miss test update and get regression. To fix this issue TLS test location should be adjusted between JDK11 and JDK8
This patch relocates 8u TLS related tests to the directories similar to JDK11.
Also this patch fixes references to keystore and template files caused by test relocation
No one test removed, only moved to another directory.
No regression after the test relocation when executed against 8u262

After update, TLS related tests are located in subdirectories:
 - javax/net/ssl
 - sun/security/ssl
 - com/sun/net/ssl
 - sun/net/www/httpstest
 - sun/net/www/protocol/https

Regards
Alexey