Fix: Weak vtable pointer warning

Throughout bmqstoragetool, Clang emits warnings for classes that have
virtual methods, but no virtual methods declared outside the class
definition:

    src/applications/bmqstoragetool/m_bmqstoragetool_printer.h:46:7: warning: 'Printer' has no out-of-line virtual method definitions; its vtable will be emitted in every translation unit [-Wweak-vtables]
       46 | class Printer {
          |       ^

This patch fixes each instance of this warning by pulling the inline
method definitions to outside the class definition.

Signed-off-by: Patrick M. Niedzielski <[email protected]>

Author: pniedzielski