/utils: add all missing Array generics

[mindrones]

• investigate which functions of [1] are not covered by functions accepting iterables in lamb or @svizzle/utils

  • for those having a correspondent function in @svizzle/utils [2], make sure they have @see pointing to the correspondent Array method

  • provide the missing ones as generics (e.g. splice) with tests as usual so that we can see how they work

• for all of them, make sure their name explicitly refer to a array input (e.g. split seems too generic)

(if needed, split this task in 2+ PRs)

[1] Possibly missing String generics

Array.prototype.copyWithin()
Array.prototype.entries()
Array.prototype.every()
Array.prototype.fill()
Array.prototype.filter()
Array.prototype.find()
Array.prototype.findIndex()
Array.prototype.flat()
Array.prototype.flatMap()
Array.prototype.forEach()
Array.from()
Array.prototype.indexOf()
Array.isArray()
Array.prototype.keys()
Array.prototype.lastIndexOf()
Array.prototype.map()
Array.of()
Array.prototype.pop()
Array.prototype.push()
Array.prototype.reduce()
Array.prototype.reduceRight()
Array.prototype.reverse()
Array.prototype.shift()
Array.prototype.slice()
Array.prototype.some()
Array.prototype.sort()
Array.prototype.splice()
Array.prototype.toLocaleString()
Array.prototype.toString()
Array.prototype.unshift()
Array.prototype.values()

[2] Existing Array generics

method	current name	new name
Array.prototype.concat	concat
Array.prototype.includes	includes	arrayIncludes
Array.prototype.join	join	[remove?](https://ascartabelli.github.io/lamb/module-lamb.html#joinWith)