Indent between \left and \right

[LeoUschi232]

The plugin should allow customization of identation rules when formatting.
For instance, I like my latex code to exhibit identations on lines between \left-\right brackets.
To provide an example, the code that looks like this:

\frac{1}{2\lambda}
\left(
\left(
\Phi^{\frac{1}{2}}
+\Phi^{-\frac{1}{2}}
\right)\lambda
+\left(
\Phi^{\frac{1}{2}}
-\Phi^{-\frac{1}{2}}
\right)S_3
\right)\ket{0}\bra{0}

should look like this:

\frac{1}{2\lambda}
\left(
    \left(
        \Phi^{\frac{1}{2}}
        +\Phi^{-\frac{1}{2}}
    \right)\lambda
    +\left(
        \Phi^{\frac{1}{2}}
        -\Phi^{-\frac{1}{2}}
    \right)S_3
\right)\ket{0}\bra{0}

[PHPirates]

Definitely agree with the proposed formatting, thanks for the suggestion. I don't think we should add settings for every one of the many indentation rules though, this should just be the default.