Some are doxy comments, some are just trivial source comment typos.
Found using `codespell -q 3 --skip="./contrib" -I ../assimp-whitelist.txt`
whereby whitelist contained:
```
childs
iff
lod
nto
ot
whitespaces
```
Commit 704e57db4e changed the order
of the parameters to `pyassimp.load`. The new order groups
`filename` and `file_type` which is preferable, but the samples and
other calls to `load` still point to the old order. This fixes that
with named arguments where necessary.