Features: Add hyperlink to text props

[Tantatorn-dev]

Description
I've add hyperlink to text props. It will create a box of link covered the text using gofpdf's LinkString

Related Issue
#191

Checklist

check with "x", if applied to your change

• [x ] All methods associated with structs has func (<first letter of struct> *struct) method() {} name style.
• Wrote unit tests for new/changed features.
• Followed the unit test when,should naming pattern.
• Updated docs/doc.go and docs/*
• Updated pkg/pdf/example_test.go
• Updated README.md
• Executed make examples to update all examples inside docs/examples.
• New public methods/structs/interfaces has comments upside them explaining they responsibilities
• Executed make dod with none issues pointed out by golangci-lint

[codecov]

Codecov Report

Attention: 9 lines in your changes are missing coverage. Please review.

Comparison is base (91daec6) 80.32% compared to head (9a271ab) 79.99%.

Files	Patch %	Lines
internal/providers/gofpdf/text.go	0.00%	7 Missing ⚠️
pkg/props/text.go	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #372      +/-   ##
==========================================
- Coverage   80.32%   79.99%   -0.33%     
==========================================
  Files          61       61              
  Lines        2007     2008       +1     
==========================================
- Hits         1612     1606       -6     
- Misses        367      376       +9     
+ Partials       28       26       -2     

Flag	Coverage Δ
unittests	79.99% <0.00%> (-0.33%)	⬇️

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[johnfercher]

Thanks for the implementation 🚀