feat(init): create template GoFr project with three-layer architecture

[yashisrani]

Fix: #60

Description

Implements the gofr init command to create a template GoFr project with three-layer architecture (handler, service, store).

Usage

gofr init -name=example.com/myproject

Generated Structure

├── go.mod
├── main.go
├── handler/
│   └── handler.go
├── service/
│   └── service.go
└── store/
    └── store.go

Architecture Flow

main.go → creates handler.New()
handler/handler.go → depends on service.Service
service/service.go → depends on store.Store
store/store.go → data layer implementation

Changes

bootstrap/init.go - Updated Create function to generate handler, service, and store directories with template files

Testing

• All existing tests pass
• Generated project compiles successfully with go build

[yashisrani]

/cc @coolwednesday @aryanmehrotra