Add nested lifetime support for add_lifetime_to_type

[A4-Tacks]

Changes:

• Add nested lifetime support
• Add explicit infer lifetime support
• Change assist type to quickfix

Example

struct Foo {
    a: &$0i32,
    b: &'_ i32,
    c: (&i32, Bar<'_>),
}

Before this PR:

struct Foo<'a> {
    a: &'a i32,
    b: &'_ i32,
    c: (&i32, Bar<'_>),
}

After this PR:

struct Foo<'a> {
    a: &'a i32,
    b: &'a i32,
    c: (&'a i32, Bar<'a>),
}