FsTask@tracklog_folder to match the IGC file

[philderbeast]

When exporting an *.fsdb please set FsTask@tracklog_folder to match the IGC file download filename for that task.

<!-- *.fsdb -->
    <FsTasks>
      <FsTask id="1" name="Task 1" tracklog_folder="">

# *.comp-input.yaml
taskFolders:
- - ''
- - ''
- - ''
- - ''
- - ''
- - ''
pilots:
- - - - '115'
      - Alberto Castagna
    - alberto_castagna_2020-08-02_01.igc
  - - - '141'
      - Albino Malli
    - albino_malli_2020-08-02_01.igc

> ls *.zip
t1_20200802.zip  t2_20200804.zip  t3_20200805.zip  t4_20200806.zip  t5_20200807.zip  t6_20200808.zip

When FsTask@tracklog_folder matches the IGC zip file name, extracting zip archives to folders of the same name is convenient and scoring can proceed in flare-timing without any hand editing intervention. The *.comp-input.yaml will use those same folders for tracklogs.

-- taskFolders:
-- - - ''
-- - - ''
-- - - ''
-- - - ''
-- - - ''
-- - - ''
taskFolders:
++ - - t1_20200802
++ - - t2_20200804
++ - - t3_20200805
++ - - t4_20200806
++ - - t5_20200807
++ - - t6_20200808

[biuti]

Ok I'll have a look. We need to decide wether name the inc zip file as our folder in Airscore, or use zip filename as it is now in fsdb creation.