Remove "t" prefix from columns in the "types" table.
Remove "f" prefix from columns in the functions table.
Remove "v" prefix from columns in the "variables" table.
Remove "t" prefix from columns in the "typedefs" table.
Record the name and qualname of the typedef and stop recording the underlying type
for now since it is not used.
Remove "w" prefix from columns in the "warnings" table.
Remove "macro" prefix from columns in the "macros" table.
Remove "s" prefix from columns in the "scopes" table.
Rename the "ID" column in the "files" table to "id" (lowercase)
Fix typo of "d" instead of "id" for column in "functions" table.
Remove prefixes and other brain-deadness from SQL column names. Closes #71.