Fix: Purged dirs() in scripters and outputModel.R

[omarjcamanto]

Addresses Issue #111

Scripters

• Removed dirs() step
• Updated cat() to write lavaan scripts directly to the current working directory rather than the subdirectory created by dirs().
• Updated documentation

outputModel.R

• Removed dirs() step
• Updated the writeout argument to accept character strings specifying where to write the output files.
• Updated gt::gtsave() to write tables directly to the current working directory
• Updated the dySEM:::makeFigure() helper function to accept the new writeout argument
• Updated documentation
• Updated @examples to write to tempdir()

I also saw potential typos in scriptBiDy.R (see lines 258 to 273) and outputModel.R (see lines 77 and 100).

[codecov-commenter]

Codecov Report

Attention: 169 lines in your changes are missing coverage. Please review.

Comparison is base (1979b38) 40.61% compared to head (656873e) 41.41%. Report is 2 commits behind head on master.

Files	Patch %	Lines
R/outputModel.R	0.00%	106 Missing :warning:
R/outHelpers.R	0.00%	40 Missing :warning:
R/scriptBiDy.R	0.00%	14 Missing :warning:
R/scriptINULL.R	0.00%	2 Missing :warning:
R/scriptISAT.R	0.00%	2 Missing :warning:
R/scriptAPIM.R	0.00%	1 Missing :warning:
R/scriptCFA.R	0.00%	1 Missing :warning:
R/scriptCFM.R	0.00%	1 Missing :warning:
R/scriptMIM.R	0.00%	1 Missing :warning:
R/scriptObsAPIM.R	0.00%	1 Missing :warning:

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #112 +/- ## ========================================== + Coverage 40.61% 41.41% +0.79% ========================================== Files 23 23 Lines 2487 2439 -48 ========================================== Hits 1010 1010 + Misses 1477 1429 -48 ```

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[jsakaluk]

• [ ] Create writeTo argument for scripters and outputters (and check other boutique functions that may write) that defaults to tempdir(), but will accept character of other paths
• [ ] Create fileName argument for "" that defaults to a sensible/readable/intuitive name of the thing being written (e.g., "dCFA Script"; "semFig", etc.,), but will accept character of another name
• [ ] amend writing functions to save to directory combining writeTo, fileName, and the appropriate extension (e.g., .txt, .rtf, .png, etc.,)
• [ ] Check/update README and other vignettes
• [ ] Run check()
• [ ] Try to break things
• [ ] Test a few cases to ensure files can be saved to sensible locations with appropriate inputs (e.g., working directories with project files)
• [ ] Update examples (and maybe vignettes) to show how

[jsakaluk]

Closing in favour of second PR