feat: add Starport for better development environment

[jaybxyz]

Summary

Right now, we use localnet.sh script to run local network when we test things out. This issue proposes to add Starport for better development environment so that just by running starport chain serve command, you can run local network with various different functionalities that Starport supports.

Tasks

• Add config.yml to add Starport
• Update README.mdand TECHNICAL_SETUP.md docs
• Remove scripts/localnet.sh and update Makefile

References

• Starport Official Github
• Starport Documentation

---

For Admin Use

• Not duplicate issue
• Appropriate labels applied
• Appropriate contributors tagged
• Contributor assigned/self-assigned

[dongsam]

It will continue once starport starts supporting cosmos-sdk 0.44.3