Adds missing filter flags for the outline filter.

[Neerti]

Fixes #205
Tried to fix the issue I found last night in the same way that #165 added other filter flags, but that PR seemed to have forgotten to add the two outline flags.

I tested this locally and the error doesn't come up now so it does work.

Hopefully I did everything right, let me know if there's any issues.

[ZeWaka]

You'll need to add stuff here I think:

SpacemanDMM/src/dreammaker/ast.rs

Lines 918 to 942 in ec16f12

	pub static VALID_FILTER_TYPES: phf::Map<&'static str, &[&str]> = phf_map! {
	"alpha" => &[ "x", "y", "icon", "render_source", "flags" ],
	"angular_blur" => &[ "x", "y", "size" ],
	"color" => &[ "color", "space" ],
	"displace" => &[ "x", "y", "size", "icon", "render_source" ],
	"drop_shadow" => &[ "x", "y", "size", "offset", "color"],
	"blur" => &[ "size" ],
	"layer" => &[ "x", "y", "icon", "render_source", "flags", "color", "transform", "blend_mode" ],
	"motion_blur" => &[ "x", "y" ],
	"outline" => &[ "size", "color" ],
	"radial_blur" => &[ "x", "y", "size" ],
	"rays" => &[ "x", "y", "size", "color", "offset", "density", "threshold", "factor", "flags" ],
	"ripple" => &[ "x", "y", "size", "repeat", "radius", "falloff", "flags" ],
	"wave" => &[ "x", "y", "size", "offset", "flags" ],
	};
	// filter type => (flag field name, exclusive, can_be_0, valid flag values)
	pub static VALID_FILTER_FLAGS: phf::Map<&'static str, (&str, bool, bool, &[&str])> = phf_map! {
	"alpha" => ("flags", false, true, &[ "MASK_INVERSE", "MASK_SWAP" ]),
	"color" => ("space", true, false, &[ "FILTER_COLOR_RGB", "FILTER_COLOR_HSV", "FILTER_COLOR_HSL", "FILTER_COLOR_HCY" ]),
	"layer" => ("flags", true, true, &[ "FLAG_OVERLAY", "FLAG_UNDERLAY" ]),
	"rays" => ("flags", false, true, &[ "FLAG_OVERLAY", "FLAG_UNDERLAY" ]),
	"ripple" => ("flags", false, true, &[ "WAVE_BOUND" ]),
	"wave" => ("flags", false, true, &[ "WAVE_SIDEWAYS", "WAVE_BOUND" ]),
	};

[Neerti]

When I look on the latest version on the master branch, that block of code appears to already have the outline stuff there.

SpacemanDMM/src/dreammaker/ast.rs

Line 1143 in ac03775

"outline" => &[ "size", "color", "flags" ],

SpacemanDMM/src/dreammaker/ast.rs

Line 1156 in ac03775

"outline" => ("flags", false, true, &[ "OUTLINE_SHARP", "OUTLINE_SQUARE" ]),