Add %v and %q options to format in CodeBuilder.buildLine and some handy indentation methods

[uWynell]

1. Added %v and %q options to format in CodeBuilder.buildLine. Why? When I implemented Rust's Reqwest target (I'll make the corresponding Pull Request after this one), I noticed the problem of escaping characters. For example, my chrome browser generates sec-ch-ua header, that contains quotes, and some of the targets do not escape them, which results in broken code. And also I'm using it in the mentioned Reqwest target.
2. Added indent, unindent and reindent methods to CodeBuilder, as it allows to control indentation more conveniently.

How do %v and %q options work?

Right from the comments I made to the new format function:

Wraps the util.format function and adds the %q and %v format options, where %q - escape tricky characters, like newline or quotes and %v - JSON-stringify-if-necessary

Examples:

format('foo("%q")', { bar: 'baz' })
// output: foo("{\"bar\":\"baz\"}")

format('foo("%q")', `
`)
// output: foo("\n")

format('foo(%v)', { bar: 'baz' })
// output: foo({"bar":"baz"})

format('foo(%s)', { bar: 'baz' })
// output: foo({ bar: 'baz' })

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✅ uWynell
❌ eeWynell
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[uWynell]

Sorry, I didn't notice that I accidentally changed package-lock when I didn't have to

[dimitropoulos]

hey @uWynell! sorry that I didn't see this sooner, but in #248 we did a bit of a total overhaul and vastly simplified this stuff (in a slightly different way). I'm going to close this PR for now in part also because we removed the utils package usages from the entire package and won't be adding it back or expanding upon it.

Really appreciate your PR, truly, and hope to see more in the future! If I mixed something up please let me know!