List applications in all Namespaces when trying to update

[sribiere-jellysmack]

It looks like I closed PR 800 (I don't remember doing that)

So I Recreated it

For now, AIU only lists application in ArgoCD Namespace before trying to update them

This PR allows AIU to fetch all namespaces for annotated applications

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 43.75000% with 9 lines in your changes missing coverage. Please review.

Project coverage is 74.29%. Comparing base (60b89f2) to head (ac2ac95).

Files with missing lines	Patch %	Lines
cmd/run.go	12.50%	7 Missing ⚠️
cmd/test.go	0.00%	1 Missing ⚠️
cmd/util.go	75.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #831      +/-   ##
==========================================
- Coverage   74.39%   74.29%   -0.11%     
==========================================
  Files          31       31              
  Lines        3144     3151       +7     
==========================================
+ Hits         2339     2341       +2     
- Misses        669      674       +5     
  Partials      136      136              

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[sribiere-jellysmack]

Let's answer @jannfis ' comment on PR800

Now there is a parameter to chose wether we want namespaced or clusterwide listing.
Regarding CLusterRol and Binding, I will submit a PR on https://github.com/argoproj/argo-helm

[sribiere-jellysmack]

Any comments please?