Cppcheck-2.5

A new Cppcheck release

Parser:
* various fixes
* checked that all features in c++11, c++14, c++17 are supported
* c++20 support is improved but not complete yet

Core:
* improved library files, better knowledge about APIs
* improved checks to detect more bugs
* fixed checks to avoid unwanted warnings

Changed output:
* try to use relative paths when using compile databases, if compile database is accessed with relative path
* updated XML; The file0 attribute is moved from <location> to <error></error></location>

Misra:
* fixed crashes and false positives

New checks:
* suspicious container/iterator assignment in condition
* rethrow without current handled exception