Added RNTupleTTreeCheckerFiles + adapted main/CMakeLists & tree/ntupl…

[IdaCy]

This Pull request:

Added RNTupleTTreeChecker and RNTupleTTreeCheckerCLI to ROOT

Changes or fixes:

• Added RNTupleTTreeChecker class for comparing TTree and RNTuple structures.
• Added RNTupleTTreeCheckerCLI for command-line interface to interact with RNTupleTTreeChecker.
• Included necessary header and source files.

Checklist:

• tested changes locally
• updated the docs (if necessary)

Details:

tree/ntupleutil/

• RNTupleTTreeChecker.cxx: Implementation of the RNTupleTTreeChecker class.
• RNTupleTTreeCheckerCLI.cxx: Implementation of the command line interface.
• inc/ROOT/RNTupleTTreeChecker.hxx: Header file for the RNTupleTTreeChecker class.
• inc/ROOT/RNTupleTTreeCheckerCLI.hxx: Header file for the RNTupleTTreeChecker CLI class.
• modified CMakeLists to include above files

main/

• src/rntuplevsttree.cxx: Main entry point for CLI.
• Modified CMakeLists to include rntuplevsttree.