Return match results as objects

[untone-survive]

Previously matches for technologies were returned as associative array. So we had to depend on keys of those arrays, which could be present or not.

This PR introduces MatchResultInterface which allows to get all the required info:

interface MatchResultInterface
{
    public function getMatcher(): string;
    public function getPath(): string;
    public function getVersion(): ?string;
    public function getApplication(): ?string;
}

Every matcher has it's own math result object (i.e. WordpressMatchResult, JoomlaMatchResult, SymfonyMatchResult) which allows further checks to be implemented in code using instanceof etc.

Default implementation of MatchResultInterface now has the built-in path normalizer which was previously used only in UpLevelMatcherTrait.

Also separate EmptyMatchResult is introduced to represent the empty search. Previously empty array was used for that.

All matchers, CLI command and tests were rewritten to reflect the changes.

[rybalov]

Yii

[rybalov]

MatchResult\Yii

[rybalov]

Or you can use an alias

[rybalov]

extra line

[rybalov]

It looks like this name doesn't fit the aim of this function because of the return type (array).
JSON is string.

[untone-survive]

its required to be this way for \JsonSerializable interface