Monitoring for Dell/EMC Powervault ME4 Storage devices

Changelog:

• 2.2 - python path corrected in special agent for python3 disk check set to the right check parameters for temperature checks
• 2.3 - global hot spare status is ok for disks
• 2.4 - disks check now uses TempParamDict as params
• 2.5 - set user/pw hash to sha256
• 3.0.0 - ported to CMK 2.2
• 3.1.0 - prevent crashes if no data is present
• 3.3.0 - changes to be CMK 2.3 rdy
• 3.3.1 - writing json data fixed in special agent
• 3.3.2 - added option for certificate verification
• 3.4.0 - ported to CMK 2.3 API
• 3.4.3 - bug fix for passwords from password store - thx aeckstein