Allow changing the number of colors

[arm32x]

Currently, the plugin will use 10 colors to highlight columns. If there are more than 10 columns, it will repeat these 10 colors.

My color scheme only has 7 colors that would be reasonable to use here, so I would like to be able to change the number of colors in the repeating pattern to 7.

After looking at the code briefly, I think you might just be able to change the length of this array? Doing that at runtime would probably be more difficult, though.

intellij-rainbow-csv/src/main/java/com/andrey4623/rainbowcsv/RainbowCsvHelper.java

Lines 11 to 23 in 97cc928

	public static final TextAttributesKey[] TEXT_ATTRIBUTES_KEYS =
	new TextAttributesKey[] {
	TextAttributesKey.createTextAttributesKey("RAINBOW_CSV_COLOR_0"),
	TextAttributesKey.createTextAttributesKey("RAINBOW_CSV_COLOR_1"),
	TextAttributesKey.createTextAttributesKey("RAINBOW_CSV_COLOR_2"),
	TextAttributesKey.createTextAttributesKey("RAINBOW_CSV_COLOR_3"),
	TextAttributesKey.createTextAttributesKey("RAINBOW_CSV_COLOR_4"),
	TextAttributesKey.createTextAttributesKey("RAINBOW_CSV_COLOR_5"),
	TextAttributesKey.createTextAttributesKey("RAINBOW_CSV_COLOR_6"),
	TextAttributesKey.createTextAttributesKey("RAINBOW_CSV_COLOR_7"),
	TextAttributesKey.createTextAttributesKey("RAINBOW_CSV_COLOR_8"),
	TextAttributesKey.createTextAttributesKey("RAINBOW_CSV_COLOR_9")
	};