RFR: 8321597: Use .template consistently for files treated as templates by the build

[Erik Joelsson]

On Fri, 8 Dec 2023 14:43:29 GMT, Magnus Ihse Bursie <ihse at openjdk.org> wrote:

> Some files are used as "templates" in the build, that is, they are almost, but not fully, in the intended state. Instead, they have some pattern markers that need to be replaced with actual content as part of the build.
> 
> As a convention, most such files are named as `<resulting name>.template`, e.g. `VersionProps.java.template`, to indicate that this is almost, but not fully, a Java file.
> 
> A few files were created before this convention was fully embraced. These should be renamed to match the pattern.

Marked as reviewed by erikj (Reviewer).

-------------

PR Review: https://git.openjdk.org/jdk/pull/17033#pullrequestreview-1772602285