Generalize and streamline code base

[trueqbit]

While working on sql views, I came across some parts that I thought would be worth generalizing and streamlining the code base before making other, more profound changes.

In this PR:

• Removed superfluous serializer_context_builder.
• Renamed serializer context flag variables - e.g. omitting column types with the fts5_column flag will be needed for views as well.
• Encapsulated logging executes SQL statements in all locations, while step functions are kept in their respective functions for greater clarity.
• Select statements and "raw" DML (Data Modification Language) statements are now treated uniformly, regardless of whether they are used directly or embedded as the main statement in a With clause.
• Used c_str() instead of data() to more clearly express the intent where it makes sense.p
• Simplified code involving column filters with a new alias template.
• Renamed storage_t<>::sync_table() -> storage_t<>::sync_dbo() as this method is overloaded for all possible database object types.