VM-alloc vmbb2

+- Different changes to use an sqlite database as resource for generated VMs

+ Class for using an sqlite database as resource for generated VMs

+- correct counting of active PMs
+- initializePMCandidates(): set PMIterator and resetCandidates()
+- BnBAllocator(): set initialPM by PM.id
+- preprocess(): is now counted as execution time
+- corrected output of messages if VERBOSE_ALG_STEPS is enabled

+ AllocatorType numberation to be able to store numbers in the db
+- Extendet warning message, if allocator type is invalid

+ ability tho use comment lines beginning with //
+ parameter description
+ getPmTypes() : get defined types of PM.
Pm{count, cpu, ram}
+ getUseDatabase() :
useDatabase - use sqlite database [true, false]
+ getSqliteDatabaseFile() :
sqliteDatabase - path to sqlite database file
+ getTimestampFrom() :
timestampFrom - start time for the selection of workload data :
+ getTimestampTo() :
timestampTo - end time for the selection of workload data :
+ getTimestampInterval() :
timestampInterval - interval in ms for each selection step

+ SortType numberation to be able to store numbers in the db
+- Extendet warning message, if sort type is invalid

+- Extendet warning message, if solver type is invalid

+- generate_ff() => ff(): generation of an problem instance ist now separated form first fit allocation
+- VM.initialID is the PM.id not the position in the problemPMs vector
+ first fit allocation: Print an error if not enough PM (resources) are defined.

+ operator!=() : for PM comparison by id
+ str() : returns the VM as string - for debugging

+ Initial values for VM
+ str() : returns the VM as string - for debugging