Add more axis initialization templates

There are the following types of linear axes in plotly:

• Auto(determines the best fit from below)
• Linear
• Log
• Date
• Category
• MultiCategory

A few init functions specifically setting mandatory properties for these axis types (e.g. category order for categorical axes) would be very beneficial.

So the functions would look like this:

static member initCategorical
	(
		CategoryOrder: StyleParam.CategoryOrder,
		// all other optional properties of linear axes
	) : Axis.LinearAxis = ...

首先定位 Plotly.NET 中现有的轴类型和初始化函数，尤其是 Axis.LinearAxis 以及 issue 中提到的 StyleParam.CategoryOrder 用法。检查可选线性轴属性的表示方式，然后为列出的轴类型添加包含其必需属性的初始化模板，并根据现有轴 API 验证每个模板。