Improve content assist processor to provide better/more relevant suggestions Use cases for proposing: - [x] fields/functions of structured types after a variable/constant/function call etc. + "." - [x] union, record, set - [x] component - [x] class - [x] function without parameters - [x] function with parameters - [x] function parameters - [x] component operations, e.g. MyComp.create/done/stop etc. - [x] port operations, e.g. MyPort.start/stop/send/receive etc. - [x] timer operations, e.g. MyTimer.start/stop/read/running/timeout - [x] all/any timer/component/port operations - [x] testcases after 'execute(' - [x] verdicts after 'setverdict(' - [x] in doc comments, 'deprecated' after '@status' - [x] encoding related proposals - [x] encoding types - [x] encoding attributes - [x] attribute keyword - [x] attribute modifier - [x] extension attribute keywords - [x] extension attribute prototype settings - [x] extension attribute printing settings - [x] extension attribute encode/decode type - [x] extension attribute encode/decode option - [x] after class 'extends' propose potential base classes considering the following: - don't propose the class itself - don't propose classes that are already listed in the 'extends' list - if a non-trait class is already listed, only propose trait classes - don't propose final classes that cannot be extended - [x] modifier keywords starts with "@" - [x] class definition: type class @abstract/@final/@trait - [x] class function definition: function @final/@abstract/@deterministic - [x] module function definition: function @control/@deterministic - [x] function parameter: function (@modifier)? fname(..., @lazy/@fuzzy