feat: add unwrap_or and unwrap_default

[Eikix]

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This change is 

[orizi]

Reviewed 1 of 1 files at r1, all commit messages.
Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @Eikix)

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corelib/src/option.cairo line 22 at r1 (raw file):

    fn unwrap_or<+Drop<T>>(self: Option<T>, default: T) -> T;
    /// Returns x if Option is Option::some(x), otherwise returns Default::<T>::default()
    fn unwrap_or_default<+Default<T>>(self: Option<T>) -> T;

Suggestion:

    fn is_none(self: @Option<T>) -> bool;
    /// Returns x if Option is Option::some(x), otherwise returns the provided default value.
    fn unwrap_or<+Drop<T>>(self: Option<T>, default: T) -> T;
    /// Returns x if Option is Option::some(x), otherwise returns Default::<T>::default().
    fn unwrap_or_default<+Default<T>>(self: Option<T>) -> T;

[orizi]

Reviewed 1 of 1 files at r2, all commit messages.
Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @Eikix)

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corelib/src/option.cairo line 22 at r2 (raw file):

    fn unwrap_or<+Drop<T>>(self: Option<T>, default: T) -> T;
    /// Returns x if Option is Option::some(x), otherwise returns Default::<T>::default().
    fn unwrap_or_default<+Default<T>>(self: Option<T>) -> T;

just more conforming to the rest of the doc.

Suggestion:

    /// If `self` is `Option::Some(x)`, returns `x`. Otherwise, returns the provided default.
    fn unwrap_or<+Drop<T>>(self: Option<T>, default: T) -> T;
    /// If `self` is `Option::Some(x)`, returns `x`. Otherwise, returns `Default::<T>::default()`.
    fn unwrap_or_default<+Default<T>>(self: Option<T>) -> T;

[orizi]

Reviewed 1 of 1 files at r3, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @Eikix)

[orizi]

@gilbens-starkware for 2nd eye

Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @Eikix)

[gilbens-starkware]

Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @Eikix)

[gilbens-starkware]

Reviewed 1 of 1 files at r3, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @Eikix)