Add charts toolbar parameter

[NairodP]

In this pull request :

• Update in jquery-core/src/lib/jquery-core.models.ts to add the parameter showToolbar in a newChart as well as in interfaces so that it is typed and integrated so that graphic components can access it via config.

• Update all directives to add the showToolbar variable to _chartConfig, enabling or disabling the toolbar.

• In updateConfig() of all directives, in options -> chart -> toolbar -> show: update so that the toolbar is set by default to the value given to it in config, otherwise to false. The toolbar is therefore invisible if it is not set to true in a chart's config when it is implemented.

implementation example :

pieExample:... = {
data: ...,
config: {
showToolbar: true,
... etc

Before :

pieExample:... = {
data: ...,
config: {
options: {
chart: {
toolbar: {
show: false
},
},
},
... etc