Add tremor new command

[Licenser]

Pull request

Description

Adds the tremor new <name> that will create a template tremor project.

Checklist

• The RFC, if required, has been submitted and approved
• Any user-facing impact of the changes is reflected in docs.tremor.rs
• The code is tested
• Use of unsafe code is reasoned about in a comment
• Update CHANGELOG.md appropriately, recording any changes, bug fixes, or other observable changes in behavior
• The performance impact of the change is measured (see below)

Performance

No impact

[codecov]

Codecov Report

Merging #1671 (49382ab) into main (8036ef3) will decrease coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #1671      +/-   ##
==========================================
- Coverage   87.60%   87.58%   -0.02%     
==========================================
  Files         254      254              
  Lines       50333    50372      +39     
==========================================
+ Hits        44094    44119      +25     
- Misses       6239     6253      +14     

Flag	Coverage Δ
clicommand	14.44% <100.00%> (+0.09%)	⬆️
cliintegration	52.34% <2.50%> (-0.25%)	⬇️
cliunit	13.39% <2.50%> (-0.02%)	⬇️
unittests	86.38% <ø> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
tremor-cli/src/cli.rs	54.05% <100.00%> (+0.62%)	⬆️
tremor-cli/src/main.rs	73.52% <100.00%> (+33.52%)	⬆️
src/connectors/impls/unix_socket/client.rs	87.70% <0.00%> (-4.10%)	⬇️
src/connectors/utils/metrics.rs	92.39% <0.00%> (-2.18%)	⬇️
src/connectors/utils/reconnect.rs	95.02% <0.00%> (-0.83%)	⬇️
src/connectors/impls/kafka/producer.rs	74.36% <0.00%> (-0.73%)	⬇️
src/connectors.rs	87.55% <0.00%> (-0.32%)	⬇️
src/pipeline.rs	85.67% <0.00%> (-0.29%)	⬇️
tremor-value/src/value.rs	98.90% <0.00%> (-0.19%)	⬇️
... and 2 more

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[darach]

LGTM