BF: Fixed locating config files for ioHub extensions which prevented them from loading

[mdcutone]

Ensure that plugin/extension paths are accessible and that we're accessing configuration files in those paths

[codecov]

Codecov Report

Merging #5821 (51b1c48) into dev (a411fcf) will decrease coverage by 37.40%.
Report is 1142 commits behind head on dev.
The diff coverage is 8.44%.

❗ Current head 51b1c48 differs from pull request most recent head 2ba12c6. Consider uploading reports for the commit 2ba12c6 to get more accurate results

@@             Coverage Diff             @@
##              dev    #5821       +/-   ##
===========================================
- Coverage   51.61%   14.21%   -37.40%     
===========================================
  Files         313      315        +2     
  Lines       58582    58771      +189     
===========================================
- Hits        30236     8356    -21880     
- Misses      28346    50415    +22069     

Components	Coverage Δ
app	∅ <ø> (∅)
boilerplate	∅ <ø> (∅)
library	∅ <ø> (∅)
vm-safe library	∅ <ø> (∅)