Added PhaseEnum:{OIL, GAS, WATER}
Added size() property to DynamicState
Added enum GroupInjectionControlEnum
Added group class with basic properties to support GCONINJE keyword
Added miscellaneous injection properties to the Group object
Added m_groups map to the Schedule container. Contains FIELD by default
Renamed some items in the GCONINJE keyword
Changed item names in WELSPECS
Added IntegrationTest of Schedule->Groups->injection properties
Added several enums - with namespcae container
Added GCONPROD keyword
Fixed syntax errors in GCONPROD keyword
Added productiondata to Group
Merge remote-tracking branch 'upstream/master' into group-data
Merge pull request #55 from joakim-hove/group-data

Group data