Merge 
by ZYSzys @ZYSzys
Merge two types into a new type. Keys of the second type overrides keys of the first type.
For example
```ts
type foo = {
name: string
age: string
}
type coo = {
age: number
sex: string
}
type Result = Merge // expected to be {name: string, age: number, sex: string}
```
