Added generator delegate (#231)

[philprime]

Closes #231

[techprimate-bot]

	Warnings
⚠️	Any changes to library code should be reflected in the Changelog. Please consider adding a note there.
⚠️	The library files were changed, but the tests remained unmodified. Consider updating or adding to the tests to match the library changes.

SwiftLint found issues

Severity	File	Reason
Warning	PDFGeneratorImageDelegate.swift:16	public declarations should be documented. (missing_docs)
Warning	PDFGeneratorImageDelegate.swift:16	Opening braces should be preceded by a single space and on the same line as the declaration. (opening_brace)
Warning	PDFGenerator.swift:65	Lines should not have trailing whitespace. (trailing_whitespace)
Warning	PDFGenerator.swift:67	Delegates should be weak to avoid reference cycles. (weak_delegate)
Warning	PDFAttributedText.swift:65	override modifier should be before public. (modifier_order)
Warning	PDFAttributedText.swift:64	Lines should not have trailing whitespace. (trailing_whitespace)
Warning	PDFSimpleText.swift:83	Lines should not have trailing whitespace. (trailing_whitespace)
Warning	PDFText.swift:15	Files should have a single trailing newline. (trailing_newline)
Warning	PDFGenerator+Generation.swift:195	Function should have complexity 10 or less: currently complexity equals 11 (cyclomatic_complexity)
Warning	PDFGenerator+Generation.swift:195	Line should be 150 characters or less: currently 172 characters (line_length)

Generated by 🚫 Danger Swift against 9786cbf

[codecov]

Codecov Report

Patch coverage: 16.66% and project coverage change: +78.86 🎉

Comparison is base (1955ebb) 0.00% compared to head (9786cbf) 78.86%.

Additional details and impacted files

@@            Coverage Diff             @@
##            main     #319       +/-   ##
==========================================
+ Coverage   0.00%   78.86%   +78.86%     
==========================================
  Files        210      212        +2     
  Lines      12379    12608      +229     
==========================================
+ Hits           0     9943     +9943     
+ Misses     12379     2665     -9714     

Flag	Coverage Δ
iOS	79.78% <16.66%> (?)
macOS	0.00% <0.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...rce/API/Delegation/PDFGeneratorImageDelegate.swift	0.00% <0.00%> (ø)
Source/API/PDFGenerator.swift	100.00% <ø> (+100.00%)	⬆️
Source/API/Text/PDFAttributedText.swift	61.90% <0.00%> (+61.90%)	⬆️
Source/API/Text/PDFSimpleText.swift	70.00% <0.00%> (+70.00%)	⬆️
Source/API/Text/PDFText.swift	0.00% <0.00%> (ø)
Source/API/PDFGenerator+Generation.swift	90.53% <66.66%> (+90.53%)	⬆️

... and 181 files with indirect coverage changes

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[brendand]

This is interesting, but what's the use case for it? Why would you need to know when images are being drawn? Does it make for a more accurate process indicator? Mine usually goes straight to 33%, then to 66%, then to 100%. Would be nice to see more increments.

[philprime]

@brendand I recommend reading through the discussion in #231