Add default config for SVGO plugin

[DamianMullins]

We should apply a default set of config for the SVGO plugin to ensure that all SVGs are consistent across Fozzie modules.

The default set used to date is as follows

{
    cleanupAttrs: true,
    cleanupEnableBackground: true,
    cleanupIDs: true,
    cleanupListOfValues: false,
    cleanupNumericValues: true,
    collapseGroups: true,
    convertColors: true,
    convertPathData: true,
    convertShapeToPath: true,
    convertStyleToAttrs: true,
    convertTransform: true,
    inlineStyles: true,
    mergePaths: true,
    minifyStyles: true,
    moveElemsAttrsToGroup: true,
    moveGroupAttrsToElems: true,
    removeComments: true,
    removeDesc: true,
    removeDimensions: true,
    removeDoctype: true,
    removeEditorsNSData: true,
    removeEmptyAttrs: true,
    removeEmptyContainers: true,
    removeEmptyText: true,
    removeHiddenElems: true,
    removeMetadata: true,
    removeNonInheritableGroupAttrs: true,
    removeRasterImages: false,
    removeScriptElement: false,
    removeStyleElement: false,
    removeTitle: true,
    removeUnknownsAndDefaults: true,
    removeUnusedNS: true,
    removeUselessDefs: true,
    removeUselessStrokeAndFill: true,
    removeViewBox: false,
    removeXMLNS: false,
    removeXMLProcInst: true,
    sortAttrs: true
}

With a float precision of 2.

We'll need to match these values up to the SVGO config.