Update bower-asset/js-cropbox 0.12.1

Update bower-asset/highcharts-release 5.0.14

Update .gitignore file

Update npm-asset/bootstrap 4.6.2

Update bower-asset/adminlte 2.4.18

Downgrade bower-asset/angular-bootstrap 1.3.3 -> 0.13.4 to support "mdmsoft/yii2-admin": "~3.0" and "deesoft/yii2-angular": "~1.1"

Update : 
"bower-asset/angular": "~1.3.20",
"bower-asset/angular-route": "~1.3.20",
"bower-asset/angular-resource": "~1.3.20",
"bower-asset/angular-bootstrap": "~1.3.3",
"bower-asset/angular-validation": "~1.3.3"
Support : 
 "mdmsoft/yii2-admin": "~3.0",

Update bower-asset/angular v1.3.20

Add bower-asset/chartjs v2.6.0

v2.0.13