Fix stack errors processing

[medikoo]

Noticed 30+ error reports in mixpanel, pointing fact it's possibe that ResourceStatusReason is not provided on event we mark as error event.

This patch ensures we do not dirty crash in such case.

Additionally:

• Added missing error codes to ServerlessError's in scripts/serverless.js
• Remove internal YamlParser dependency (it introduced alternative YAML parsing approach, which was used just in plugin install/uninstall command
• Improve plugin install/uninstall commands so they're safe in user used variables to define plugins (so far such configuration dirty crashed)
• Remove recognition of YAMLParser as user error. In new configuration read logic all YAML parse errors are already communicated with ServerlessError and same should be in all other cases

[codecov]

Codecov Report

Merging #9505 (f8f0504) into master (8d0ff07) will decrease coverage by 0.03%.
The diff coverage is 80.95%.

❗ Current head f8f0504 differs from pull request most recent head bb9f30a. Consider uploading reports for the commit bb9f30a to get more accurate results

@@            Coverage Diff             @@
##           master    #9505      +/-   ##
==========================================
- Coverage   86.79%   86.76%   -0.04%     
==========================================
  Files         322      322              
  Lines       12064    12093      +29     
==========================================
+ Hits        10471    10492      +21     
- Misses       1593     1601       +8     

Impacted Files	Coverage Δ
lib/plugins/aws/provider.js	93.75% <ø> (ø)
scripts/serverless.js	51.31% <ø> (ø)
lib/plugins/plugin/install.js	94.31% <76.47%> (-4.32%)	⬇️
lib/plugins/plugin/uninstall.js	94.28% <76.47%> (-5.72%)	⬇️
lib/cli/interactive-setup/service.js	100.00% <100.00%> (ø)
lib/plugins/aws/lib/monitorStack.js	98.66% <100.00%> (ø)
lib/utils/tokenize-exception.js	100.00% <100.00%> (ø)

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[pgrzesik]

Looks great 👍