Add create-sei-app package

[mj850]

We want a CLI tool that can quickly spin up Sei Apps

Added a CLI package that can create Cosmos and EVM Sei Apps

Download latest Internal Verison:
npm i -g @sei-js/[email protected]

Then from any directory run
create-sei app

With optional flags:
create-sei app -n appname -f vite -e evm -l wagmi

[changeset-bot]

🦋 Changeset detected

Latest commit: feac989

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@sei-js/create-sei	Major

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[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.47%. Comparing base (13afac1) to head (feac989).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #185   +/-   ##
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  Coverage   84.47%   84.47%           
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  Files          16       16           
  Lines         161      161           
  Branches       25       25           
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  Hits          136      136           
  Misses         25       25           

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