textbox split property should pass through into textWrap.

[snowyu]

d3plus-text/src/TextBox.js

Lines 114 to 122 in 00af6bb

	const wrapper = wrap()
	.fontFamily(style["font-family"])
	.fontSize(fS)
	.fontWeight(style["font-weight"])
	.lineHeight(lH)
	.maxLines(this._maxLines(d, i))
	.height(h)
	.overflow(this._overflow(d, i))
	.width(w);

missing:

.split(this._split);