Implement the full set of options

[jboarman]

The Options class provides customization and configuration options for rendering SVG files. The main options have been documented in the README, but now we need to ensure they are all implemented.

Also, it would be ideal to allow the options to be defined as a dictionary as a possible style for passing the options, so either as a dictionary or instance of a proper Options class.

If there are parameters that are problematic to deal with, we may defer those until later. But, if they are trivial to address now, then we should knock them all out now.

Name	Purpose	Type	Allowed Values	Example
width	Defines the width of the output image in pixels	Integer	Positive integers (1 and above)	options.width = 300
height	Defines the height of the output image in pixels	Integer	Positive integers (1 and above)	options.height = 200
fit_to	Controls how the SVG should be scaled to fit the output	String or Tuple	"original", ("width", value), ("height", value), ("zoom", factor)	options.fit_to = ("width", 300)
background	Sets the background color of the output image	String or None	6 or 8-digit hex color codes or None	options.background = "#FFAABB"
dpi	Specifies the DPI value used for rendering	Float	Positive float values (greater than 0)	options.dpi = 96.0
languages	Sets the list of languages for systemLanguage attribute	List of strings	Valid BCP 47 language codes	options.languages = ["en", "fr", "es"]
shape_rendering	Controls the rendering mode for shapes	String	"optimizeSpeed", "crispEdges", "geometricPrecision	options.shape_rendering = "optimizeSpeed"
text_rendering	Controls the rendering mode for text	String	"optimizeSpeed", "optimizeLegibility", "geometricPrecision	options.text_rendering = "optimizeLegibility"
image_rendering	Controls the rendering mode for images	String	"optimizeQuality", "optimizeSpeed", "pixelated	options.image_rendering = "optimizeQuality"
skip_system_fonts	Skip loading system fonts when rendering text	Boolean	True or False	options.skip_system_fonts = True
font_size	Specifies the default font size for text elements	Float	Positive float values (greater than 0)	options.font_size = 14.0
font_family	Specifies the default font family for text elements	String	Valid font family names	options.font_family = "Arial"
font_path	Path to a custom font file	String	Valid file path	options.font_path = "path/to/font.ttf"