F/copy with flag

[mellonnen]

• cleanup in main package
• replace -p and -a flags with --relay flag
• add behavior discussed in Portal proposes to copy and use a bad command (not complete) to receive. #46

[codecov]

Codecov Report

Merging #47 (8deae65) into develop (c3276cc) will increase coverage by 8.69%.
The diff coverage is n/a.

❗ Current head 8deae65 differs from pull request most recent head 7af990a. Consider uploading reports for the commit 7af990a to get more accurate results

Additional details and impacted files

@@             Coverage Diff             @@
##           develop      #47      +/-   ##
===========================================
+ Coverage    31.30%   40.00%   +8.69%     
===========================================
  Files            6        6              
  Lines          230      230              
===========================================
+ Hits            72       92      +20     
+ Misses         138      111      -27     
- Partials        20       27       +7     

Impacted Files	Coverage Δ
portal/portal.go	36.11% <0.00%> (+36.11%)	⬆️
portal/config.go	100.00% <0.00%> (+100.00%)	⬆️

[ZinoKader]

I don't think validateRendezvousAddressInViper is working anymore as it's using viper.GetString("rendezvousAddress")

[mellonnen]

I don't think validateRendezvousAddressInViper is working anymore as it's using viper.GetString("rendezvousAddress")

a095d42