Introduce a new progress bar for state enumeration

[sundowndev]

Q	A
🐛 Bug fix?	yes
🚀 New feature?	no
⚠ Deprecations?	no
❌ BC Break	no
🔗 Related issues	#408
❓ Documentation	no

Description

Listing states from S3 can take time and make the progressbar timeout. We should introduce a new progressbar for state enumeration count and one for resource enumeration from states files.

This change updates the actual progress interface and introduce a new progress bar for state enumeration.

[codecov]

Codecov Report

Merging #460 (85929f8) into v0.8 (b64276a) will increase coverage by 0.03%.
The diff coverage is 68.57%.

@@            Coverage Diff             @@
##             v0.8     #460      +/-   ##
==========================================
+ Coverage   70.73%   70.76%   +0.03%     
==========================================
  Files         287      287              
  Lines        6472     6496      +24     
==========================================
+ Hits         4578     4597      +19     
- Misses       1521     1522       +1     
- Partials      373      377       +4     

Impacted Files	Coverage Δ
pkg/cmd/scan.go	82.47% <0.00%> (+0.35%)	⬆️
pkg/output/progress.go	86.20% <71.42%> (-8.80%)	⬇️
pkg/driftctl.go	71.25% <100.00%> (+2.33%)	⬆️
pkg/iac/supplier/supplier.go	85.18% <100.00%> (ø)
pkg/iac/terraform/state/terraform_state_reader.go	68.49% <100.00%> (+0.21%)	⬆️