Support left/right single quotation marks in text and arguments

[seisman]

Description of proposed changes

Left/right single quotation marks ‘’ are not translated correctly in PR #2584. Here is a minimal example to reproduce the issue:

>>> import pygmt
>>>
>>> fig = pygmt.Figure()
>>> fig.basemap(region=[0, 10, 0, 5], projection="X10c/5c", frame=True)
>>> fig.text(text="A ' ‘ ’ \" “ ” B", position="CM", font="20p", fill="230")
>>> fig.show()

This PR fixes the bug.

Incorrect result in the main branch	Correct result in this PR

You may notice that the ASCII character ' (usually called straight single quotation mark or apostrophe) is typeset like ’ rather than '. The reason behind this is complicated. Anyone interested can read the references listed below. With ISOLatin+ charset, users can use octal code \234 to get the ' character.

References:

1. https://en.wikipedia.org/wiki/Apostrophe
2. https://typographyforlawyers.com/straight-and-curly-quotes.html
3. https://en.wikipedia.org/wiki/Quotation_mark