Global phase

[pehamTom]

Added global phases to certain gates (like RZ) during parsing.

[codecov]

Codecov Report

Merging #166 (0d5b942) into main (8f1d73b) will increase coverage by 0.0%.
The diff coverage is 100.0%.

@@          Coverage Diff          @@
##            main    #166   +/-   ##
=====================================
  Coverage   84.1%   84.2%           
=====================================
  Files         48      48           
  Lines       8238    8255   +17     
=====================================
+ Hits        6935    6952   +17     
  Misses      1303    1303           

Impacted Files	Coverage Δ
src/zx/FunctionalityConstruction.cpp	96.3% <100.0%> (+0.1%)	⬆️
test/unittests/test_zx_functionality.cpp	100.0% <100.0%> (ø)

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[burgholzer]

Many thanks for this PR!

Just a couple of small things/questions:

• why were the json and pybind11 submodules touched in this PR?
• just to double check: the rx gate does not need a global phase?
• for the rest of the questions, see below.

[burgholzer]

LGTM 👍🏻