Add opaque teleportation gate

[hillmich]

If teleportation was used in mapping, add an opaque gate to the output.

[burgholzer]

Other than the one issue that's stopping the code from compiling, this lgtm.
Adding a simple test that confirms that dumping works, would be great.
In the best case, there is also a test that makes sure the resulting circuit can be read in again and yields the same QuantumComputation used for dumping.

[codecov]

Codecov Report

Merging #286 (ca12a1a) into main (9dbdebc) will increase coverage by 0.2%.
The diff coverage is 100.0%.

@@           Coverage Diff           @@
##            main    #286     +/-   ##
=======================================
+ Coverage   87.1%   87.4%   +0.2%     
=======================================
  Files         58      58             
  Lines       6728    6729      +1     
  Branches    1352    1351      -1     
=======================================
+ Hits        5865    5886     +21     
+ Misses       863     843     -20     

Impacted Files	Coverage Δ
include/parsers/qasm_parser/Parser.hpp	100.0% <ø> (ø)
src/QuantumComputation.cpp	77.5% <100.0%> (+<0.1%)	⬆️

... and 4 files with indirect coverage changes

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[hillmich]

I fixed the error and added a test 👍

[burgholzer]

LGTM. Many thanks 🙏