Some enhances for the Studio

[mdre]

I'm using Studio a lot and there some things that could be nice to have:

• In the studio, in tab-database, it is really important to have a way to search for a type. In Orient we have a filter at the top to search. Here there's a really looooong list on the left and if I scroll I lost the fields view.
• When I click over a type it show only the direct type field but not the inherited as Orient do.
• If you click on "super type" to see it, you can't get back to the previous type.
• it really important to have a way to store the querys. A Load/Save button could be help. The right top button open to the right and if the browser is maximize it go off-screen.
• Since when I work it's not clear the query I want, it is usefull to excecute part of a query just highligting it and pressing run.
• Preserve the output of a query like Orient do or in tab like others database.
• Highlight matched brackets.
• In the Graph view, when you want to navigate through an edge, it add all of it and not let you choose which to add as Orient do.

[lvca]

Just pushed this: 3266131: "Following the request on #1147, now also sub-types are displayed, so it's easier to go back and forth between types following the hierarchy. Also, now all the properties are displayed, included the one from super types."

[lvca]

Also moved the History button in a better position:

47be5db

"Following the request on #1147, the history now is more visible and does not disappear on window resizing."

[lvca]

Execution of selected text has been implemented in 0b624b1.