Backport structural changes from WebZLP

[Cellivar]

In prep for v2.0 of the WebZLP library I've made significant alterations to the structure of that project. The goal was to improve the modularity of the code and promote more sustainable patterns based on lessons learned writing this library.

The primary focus has been on making the library more async-friendly, and generally easier to integrate within UI frameworks such as React.

These changes in this PR are mostly about shuffling things around instead of visible changes, and the effects on actual consumers are fairly limited. For an example of such changes see the demo.html page for the changes you'll need to make.

[github-actions]

Coverage Report

Status	Category	Percentage	Covered / Total
🔵	Lines	10.22%	697 / 6819
🔵	Statements	10.22%	697 / 6819
🔵	Functions	26.8%	26 / 97
🔵	Branches	60.52%	69 / 114

File Coverage

File	Stmts	Branches	Functions	Lines	Uncovered Lines
Changed Files
src/ReceiptPrinter.ts	0%	0%	0%	0%	1-378
src/index.ts	0%	0%	0%	0%	1-8
src/Commands/CommandSet.ts	10.56%	75%	28.57%	10.56%	91-210, 216-217, 220-232, 239-240, 243-255
src/Commands/Commands.ts	76%	50%	0%	76%	110-115, 120-125
src/Commands/Messages.ts	45.32%	76.92%	41.17%	45.32%	38-39, 42-43, 53-54, 56-57, 64-67, 72, 76-77, 81-91, 226-231, 234-298, 310-323, 329-350
src/Commands/PrinterConfig.ts	20.68%	100%	0%	20.68%	7-8, 12-28, 31-37
src/Commands/TranspileCommand.ts	10.34%	0%	0%	10.34%	31-48, 52-61
src/Commands/index.ts	100%	100%	100%	100%
src/Configs/BasePrinterConfig.ts	3.07%	100%	0%	3.07%	8-82
src/Configs/ConfigurationTypes.ts	100%	100%	100%	100%
src/Configs/Languages.ts	100%	100%	100%	100%
src/Configs/index.ts	100%	100%	100%	100%
src/Documents/Document.ts	0%	0%	0%	0%	1-25
src/Documents/DocumentTranspiler.ts	0%	0%	0%	0%	1-271
src/Documents/index.ts	0%	0%	0%	0%	1-2
src/Languages/PrinterCommandLanguage.ts	0%	0%	0%	0%	1-21
src/Languages/index.ts	0%	0%	0%	0%	1
src/Languages/EscPos/BasicCommands.ts	0%	0%	0%	0%	1-263
src/Languages/EscPos/CmdSetAutoStatusBack.ts	18.46%	80%	25%	18.46%	15-30, 39-52, 76-166
src/Languages/EscPos/EscPos.ts	0%	0%	0%	0%	1-145
src/Languages/EscPos/Messages.ts	35.63%	100%	66.66%	35.63%	85-163
src/Languages/EscPos/index.ts	0%	0%	0%	0%	1
src/ReceiptLine/Parser.ts	0%	0%	0%	0%	1-1074
src/ReceiptLine/RECEIPTLINE.js	0%	0%	0%	0%	1-2695
src/Util/EnumUtils.ts	100%	100%	100%	100%
src/Util/StringUtils.ts	79.03%	100%	66.66%	79.03%	11-24
src/Util/index.ts	100%	100%	100%	100%

Generated in workflow #27 for commit 2a58fb5 by the Vitest Coverage Report Action