change internal dependency management

[tlpss]

• List internal dependencies as regular dependencies.
• Modify the install commands to install them all at once (or in the right order)

Fix issues with 'direct links' and filepaths to list the internal dependencies by list them as regular dependencies.
cf #91

i.e.

from

dependencies = 
[ 
... 
numpy
]

extra_requires = {
"external: [
 airo_typing @ :/<path-to-local-file>

to

dependencies = [
numpy
airo-typing

]