Add more array methods

[Helianthella]

• sort (asc, desc) → not possible because of #157
• shuffle → not possible because of #157
• reverse → not possible because of #157
• rotate → not possible because of #157
• copy
• search
• implode or join

[Helianthella]

issue #157 is a huge hindrance

[o11c]

Don't take the array size automatically, take it as an extra parameter. #157 is not a bug.

[Helianthella]

oh good idea