Sonar Minor Warnings: Magic numbers

Magic Numbers have been removed from the below classes:

* core.HotSpotLogParser
* core.TagProcessor
* demo.JarScan
* demo.SandboxTestLoad
* histo.Histo
* loader.BytecodeLoader
* model.JITEvent
* model.MemberSignatureParts
* model.Tag
* model.assembly.AssemblyInstruction
* model.assembly.AssemblyReference
* model.assembly.AssemblyUtil
* model.bytecode.BytecodeInstruction
* suggestion.AttributeSuggestionWalker
* ui.AbstractTextViewerStage
* ui.BrowserStage
* ui.ClassTree
* ui.CodeCacheStage
* ui.CompileChainStage
* ui.ConfigStage
* ui.Dialogs
* ui.FileChooserList
* ui.NothingMountedStage
* ui.StatsStage
* ui.TableUtil
* ui.TimeLineStage
* ui.sandbox.EditorPane
* ui.sandbox.SandboxStage
* ui.suggestion.MemberTableCell
* ui.suggestion.SuggestionTableCell
* ui.suggestion.SuggestionTableUtil
* ui.toplist.TopListStage
* ui.triview.ClassSearch
* ui.triview.TriView
* ui.triview.assembly.ViewerAssembly
* ui.triview.bytecode.ViewerBytecode
* util.ParseUtil
* util.StringUtil

Last set of classes rectified:
* ui.JitWatchUI
* demo.MakeHotSpotLog
* ui.HistoStage
* ui.AbstractGraphStage