Add Laravel support

[owenvoke]

Description

This adds full Laravel support with facades and app binding.

Usage examples:

// The app binding can be used as
app('arionum')->getNodeInfo();
app(Arionum::class)->getNodeInfo();

// The facade can be used as
Arionum::getNodeInfo();

Types of changes

Put an x in all the boxes that apply:

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

Put an x in all the boxes that apply:

• I have read the CONTRIBUTING document.
• My pull request addresses exactly one patch/feature.
• I have created a branch for this patch/feature.

If you're unsure about any of these, don't hesitate to ask. We're here to help!

[codecov]

Codecov Report

Merging #38 into develop will decrease coverage by 6.95%.
The diff coverage is 0%.

@@              Coverage Diff              @@
##             develop      #38      +/-   ##
=============================================
- Coverage        100%   93.04%   -6.96%     
- Complexity        62       66       +4     
=============================================
  Files              3        6       +3     
  Lines            214      230      +16     
=============================================
  Hits             214      214              
- Misses             0       16      +16

Impacted Files	Coverage Δ	Complexity Δ
src/Laravel/ArionumServiceProvider.php	0% <0%> (ø)	3 <3> (?)
src/Laravel/config/arionum.php	0% <0%> (ø)	0 <0> (?)
src/Laravel/ArionumFacade.php	0% <0%> (ø)	1 <1> (?)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 3ff0b33...4afe65e. Read the comment docs.