OneAgent install for Windows only supports 64 bit OS

[popecruzdt]

The OneAgent install for Windows playbook references 'oneagentctl' in a directory that only exists for 64 bit OS.
'C:\Program Files (x86)\dynatrace\oneagent\agent\tools'
The 'oneagentctl' program resides in 'C:\Program Files\dynatrace\oneagent\agent\tools' for 32 bit OS.

[popecruzdt]

Added a condition to prevent the tasks involving 'oneagentctl' from running on architectures that aren't 64 bit. This prevents the playbook from failing on 32 bit systems, but doesn't add 32 bit support.