[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.

Beginnen Sie mit einer Untersuchung des bestehenden Verhaltens der Eclipse platform bei line-breakpoint, ruler und codemining, und vergleichen Sie es anschließend mit den angeforderten Inline-Breakpoint-Interaktionen im VS Code-Stil. Legen Sie fest, wie Spalten beibehalten, mehrere Breakpoints angezeigt und Breakpoints durch Klicks entfernt werden; die Fertigstellung erfordert eine Plattformfunktionalität, die einzelne Debug-Implementierungen verwenden können.

Vom Indexierungsmodell aus dem Issue-Text verfasst.