[feature] Add support for inline breakpoints with column like vscode

Today in eclipse we only have line breakpoints. But with more and more LSP/DAP based languages such as JS/TS are supported by Eclipse, it would be nice to have inline breakpoints like in vscode. As the platform it should only be supported to keep the column and then present a codemining with the debug icon at the column in addition to the breakpoints icon in the ruler. may be multiple inline breakpoints on the same line could be shown overlapped on top of each other in the ruler. Clicking on the code mining icon should remove the breakpoint and clicking on the ruler will remove the last breakpoint on the line.

Individual Debug implementation can make use of this feature to implement supported inline breakpoints.

Iniziare esaminando il comportamento esistente di Eclipse platform per line-breakpoint, ruler e codemining, quindi confrontarlo con le interazioni richieste per i breakpoint inline in stile VS Code. Definire come vengono mantenute le colonne, come vengono visualizzati più breakpoint e come i clic rimuovono i breakpoint; il completamento richiede una funzionalità della piattaforma che le singole implementazioni di debug possano utilizzare.

Scritto dal modello di indicizzazione a partire dal testo della issue.