work on the readme file in github

git-svn-id: https://svn.code.sf.net/p/tango-ds/code/DeviceClasses/MeasureInstruments/NewportInfinityMeter/trunk@19084 3b39871e-fe4b-0410-b5db-e82997f68959
introduce log levels from taurus (not tango native) with in the infs class. (this may change).
create a tango device server structure to communicate with this instrument.
add the first capacities of this newer device to get some reading from the instrument.

git-svn-id: https://svn.code.sf.net/p/tango-ds/code/DeviceClasses/MeasureInstruments/NewportInfinityMeter/trunk@19085 3b39871e-fe4b-0410-b5db-e82997f68959