KSWriteASCII: Fix headers, add type prefixes before lines

Before, the single header row contained a list of all outputs, mixing e.g. track and step outputs.
With this commit, there are multiple header rows, splitting the header up into step, track etc. output.
To use the header meaningfully, the further lines are also prepended by "track", "step" etc. indicating
their type.
Also, since outputs have been observed to change order at random (which still has to be understood and
if possible avoided), this commit uses fActive*Component to list the actually used components in their
correct order.

Kassiopeia/Writers/Include/KSWriteASCII.h

@@ -16,18 +16,18 @@ class KSWriteASCII : public KSComponentTemplate<KSWriteASCII, KSWriter>
     class Data
     {
       public:
-        Data(KSComponent* aComponent, KSWriteASCII* aWriter);
+        Data(KSComponent* aComponent, int aPrecision);
         ~Data();
 
+        void Initialize(KSComponent* aComponent, int aPrecision);
         void Start(const unsigned int& anIndex);
         std::string ValuesAsString();
-        void MakeTitle(KSComponent* aComponent, int aTrack);
+        std::string Label();
 
 
       private:
         std::string fLabel;
         std::string fType;
-        KSWriteASCII* fWriter;
         unsigned int fIndex;
         unsigned int fLength;
 
@@ -67,10 +67,11 @@ class KSWriteASCII : public KSComponentTemplate<KSWriteASCII, KSWriter>
 
     katrin::KTextFile* TextFile();
     void Write(std::string str);
+    void Write(char c);
     int Precision() const;
 
   protected:
-    katrin::KTextFile* MakeOutputFile(int anIndex) const;
+    void MakeOutputFile(int anIndex);
 
   private:
     std::string fBase;
@@ -163,19 +164,32 @@ inline void KSWriteASCII::SetPrecision(const unsigned int& aValue)
 
 inline katrin::KTextFile* KSWriteASCII::TextFile()
 {
+    if (!fTextFile)
+        MakeOutputFile(fTrackIndex);
+
     return fTextFile;
 }
 
 inline void KSWriteASCII::Write(std::string str)
 {
     for (char& it : str)
-        fTextFile->File()->put(it);
+        TextFile()->File()->put(it);
+}
+
+inline void KSWriteASCII::Write(char c)
+{
+    TextFile()->File()->put(c);
 }
 
 inline int KSWriteASCII::Precision() const
 {
     return fPrecision;
 }
+
+inline std::string KSWriteASCII::Data::Label()
+{
+    return fLabel;
+}
 
 }  // namespace Kassiopeia