Support federated reactors

[jondo2010]

Closes #16

[codecov-commenter]

Codecov Report

Merging #17 (e26c3a6) into main (d0819a5) will increase coverage by 5.55%.
The diff coverage is 80.21%.

@@            Coverage Diff             @@
##             main      #17      +/-   ##
==========================================
+ Coverage   74.04%   79.60%   +5.55%     
==========================================
  Files          37       48      +11     
  Lines        3595     4325     +730     
==========================================
+ Hits         2662     3443     +781     
+ Misses        933      882      -51     

Impacted Files	Coverage Δ
boomerang/src/builder/mod.rs	0.00% <ø> (ø)
boomerang_core/src/keys.rs	0.00% <0.00%> (ø)
boomerang_runtime/src/action/mod.rs	52.30% <ø> (ø)
boomerang_runtime/src/env.rs	88.88% <ø> (ø)
boomerang_runtime/src/lib.rs	50.00% <0.00%> (ø)
boomerang_runtime/src/port.rs	68.00% <ø> (-6.00%)	⬇️
boomerang_runtime/src/reactor.rs	80.43% <ø> (ø)
boomerang_tinymap/src/lib.rs	100.00% <ø> (ø)
boomerang_util/src/keyboard_events.rs	0.00% <0.00%> (ø)
boomerang_federated/src/client.rs	33.33% <33.33%> (ø)
... and 27 more

... and 1 file with indirect coverage changes

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