Prepare release openclover-4.5.2

Prepare release openclover-4.5.1

Prepare release openclover-4.5.0

Prepare release openclover-4.5.0-RC2

Prepare release openclover-4.5.0-RC1

OC-116: eclipse 2021-12 has classes compiled as JDK11 bytecode, incom…

…patible with openclover, which requires JDK8; downgrading to Luna SR2

OC-116: install clover-eclipse-libs JAR files as individual artifacts…

… (rather than a zip file, which later has to be extracted etc), this runs only in 'workspace-setup' profile; in default it installs pom.xml only; a plugin can simply import clover-eclipse-libs dependency

NONE:auto build increment

NONE:auto build increment

NONE:auto build increment