Update project tauCharts to 0.1.15

libgrabber updated project tauCharts to 0.1.15.

@TargetProcess

### Metadata information

```json
{
  "metadata": {
    "packageManager": "github",
    "name": "tauCharts",
    "repo": "TargetProcess/tauCharts",
    "files": {
      "basePath": "build/",
      "include": ["tauCharts.min.js", "color-brewer.min.js", "css/graphic-elements.min.css", "css/colorbrewer.min.css"],
      "exclude": []
    },
    "path": "/home/jsdelivr/files/taucharts",
    "localVersions": ["0.1.0", "0.1.1", "0.1.2", "0.1.3", "0.1.4", "0.1.5", "0.1.6", "0.1.7", "0.1.9", "0.1.11", "0.1.12", "0.1.13", "0.1.14"],
    "remoteVersions": ["0.1.0", "0.1.1", "0.1.2", "0.1.3", "0.1.4", "0.1.5", "0.1.6", "0.1.7", "0.1.9", "0.1.10", "0.1.11", "0.1.12", "0.1.13", "0.1.14", "0.1.15"],
    "branchVersions": []
  },
  "version": "0.1.15",
  "updated": true,
  "updatePath": "/home/jsdelivr/files/taucharts/0.1.15",
  "branch": "tauCharts/0.1.15"
}
```