Added 14 clouds!
I've added the following 14 clouds:
- Cirrus fibratus cloud
- Cirrus uncinus cloud
- Cirrus spissatus cloud
- Altocumulus castellanus cloud
- Altocumulus floccus cloud
- Cumulus humilis cloud
- Cumulus mediocris cloud
- Cumulus congestus cloud
- Altocumulus stratiformis cloud
- Cirrostratus nebulosus cloud
- Lenticular cloud
- Fractus cloud
- Cumulonimbus calvus
- Cumulonimbus capillatus
