Fix compile error in test project

(cherry picked from commit c7111e1cd7f119dab0e7b1cad3e2c2bccf10ff08)
Add PORTABLE45 to release configuration

(cherry picked from commit fc6f0a5d9f69dc4c6458ac1d5612b94c0b21e576)
Merge branch 'develop' into stable
Merge branch 'develop' into stable
Merge branch 'develop' into stable
nuget: Bump version 3.3.0 and update release notes
Merge branch 'release/3.3' into stable
Merge tag '3.3' into develop

Bump to 3.3.0

New units:
* Frequency (@bretthysuik)
* Electric resistance (@bretthysuik)
* Electric current (@bretthysuik)
* Electric potential (@bretthysuik)
* Power (@bretthysuik)
* Level (@bretthysuik)
* Power ratio (@bretthysuik)
* Amplitude ratio (@bretthysuik)
* Acceleration (@derekhe)

Improvements:
* Support logarithmic units in generator scripts
* Improve readability in ToString(). Use digit grouping in fixed point notation. Use scientific notation for values below 1e-3 and from 1e6 and up.