[INTERNAL] Scopes: Add test for attribute selectors with quotes

[RandomByte]

Reusing the existing tests for HTML queries by adding quotes to some of
the attribute selectors and compressing the CSS before parsing it.

This targets a regression in the @adobe/css fork of css as reported
here: adobe/css-tools#77

[RandomByte]

Diff of the relevant build output using reworkcss/css (-) and adobe/css-tools (+):

html[dir=rtl][data-sap-ui-browser^=ie] .sapUiGrid th>.sapUiFormTitle,
html[dir=rtl][data-sap-ui-browser^=ie] .sapUiGrid td>.sapUiFormTitle,
html[dir=rtl][data-sap-ui-browser^=ed] .sapUiGrid th>.sapUiFormTitle,
html[dir=rtl][data-sap-ui-browser^=ed] .sapUiGrid td>.sapUiFormTitle {
	color:#000000
}

html[dir=rtl][data-sap-ui-browser^='ie'].sapUiGrid th>.sapUiFormTitle,
html[dir=rtl][data-sap-ui-browser^='ie'].sapUiGrid td>.sapUiFormTitle,
html[dir=rtl][data-sap-ui-browser^='ed'].sapUiGrid th>.sapUiFormTitle,
html[dir=rtl][data-sap-ui-browser^='ed'].sapUiGrid td>.sapUiFormTitle {
	color:#000000
}

html[dir=rtl][data-sap-ui-browser^=ie].sap-desktop-sapUiClass .testClass {
	color:#000000
}

html[dir=rtl][data-sap-ui-browser^=ie] .fooContrast .sapUiGrid th>.sapUiFormTitle,
html[dir=rtl][data-sap-ui-browser^=ie] .fooContrast.sapUiGrid th>.sapUiFormTitle,
html[dir=rtl][data-sap-ui-browser^=ie] .fooContrast .sapUiGrid td>.sapUiFormTitle,
html[dir=rtl][data-sap-ui-browser^=ie] .fooContrast.sapUiGrid td>.sapUiFormTitle,
html[dir=rtl][data-sap-ui-browser^=ed] .fooContrast .sapUiGrid th>.sapUiFormTitle,
html[dir=rtl][data-sap-ui-browser^=ed] .fooContrast.sapUiGrid th>.sapUiFormTitle,
html[dir=rtl][data-sap-ui-browser^=ed] .fooContrast .sapUiGrid td>.sapUiFormTitle,
html[dir=rtl][data-sap-ui-browser^=ed] .fooContrast.sapUiGrid td>.sapUiFormTitle {
	color:#ffffff;
}

-html[dir=rtl][data-sap-ui-browser^='ie'].sapUiGrid .fooContrast th>.sapUiFormTitle,
-html[dir=rtl][data-sap-ui-browser^='ie'].sapUiGrid .fooContrast td>.sapUiFormTitle,
-html[dir=rtl][data-sap-ui-browser^='ed'].sapUiGrid .fooContrast th>.sapUiFormTitle,
-html[dir=rtl][data-sap-ui-browser^='ed'].sapUiGrid .fooContrast td>.sapUiFormTitle {
+html[dir=rtl][data-sap-ui-browser^='ie'].sapUiGrid .fooContrast th>.sapUiFormTitle, {
 	color:#ffffff;
 }

html[dir=rtl][data-sap-ui-browser^=ie].sap-desktop-sapUiClass .fooContrast .testClass,
html[dir=rtl][data-sap-ui-browser^=ie].sap-desktop-sapUiClass .fooContrast.testClass {
	color:#ffffff;
}

(scroll to see diff; manual formatting of compressed CSS by me)