feat: add r/sys/teams

[moul]

• add r/sys/teams
• configure r/gnoland/home to use r/sys/teams
• pseudocode for gnosdk to call r/sys/teams.GetEditors() on AddPkg hook

Depends on #2164

[codecov]

Codecov Report

Attention: Patch coverage is 71.42857% with 28 lines in your changes are missing coverage. Please review.

Project coverage is 49.15%. Comparing base (c6cde63) to head (a3b67cf).
Report is 2 commits behind head on master.

Files	Patch %	Lines
gnovm/pkg/gnolang/machine.go	0.00%	8 Missing ⚠️
gnovm/stdlibs/std/native.go	12.50%	6 Missing and 1 partial ⚠️
gnovm/stdlibs/std/banker.go	0.00%	5 Missing ⚠️
gnovm/tests/stdlibs/std/std.go	86.84%	5 Missing ⚠️
gnovm/stdlibs/stdlibs.go	0.00%	2 Missing ⚠️
gnovm/tests/imports.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2184   +/-   ##
=======================================
  Coverage   49.14%   49.15%           
=======================================
  Files         576      577    +1     
  Lines       77616    77636   +20     
=======================================
+ Hits        38148    38161   +13     
- Misses      36377    36397   +20     
+ Partials     3091     3078   -13     

Flag	Coverage Δ
gnovm	42.36% <71.42%> (+0.16%)	⬆️

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