Sample Generation and FLIM Sample

Updates to the sample generation code and to the FLIM modulo sample as suggested on https://github.com/openmicroscopy/ome-documentation/pull/415


I have noticed one problem with the generated samples. The xml produced by bioformats has 
```
  <XMLAnnotation ...>
      <Value>...</Value>
      <Description>...</Description>
  </XMLAnnotation>
```
which is not valid, it should be
```
  <XMLAnnotation ...>
      <Description>...</Description>
      <Value>...</Value>
  </XMLAnnotation>
```

This dose not affect the FLIM sample as the XML is hand written.