Allow quotes around 'TableName' in sqlite schema

[agrare]

The regex from the current schema parser doesn't allow for e.g. CREATE TABLE 'Packages' like we see with the rpmdb.sqlite file.

This would lead to an exception when listing the tables

     Failure/Error: tname = m[1].to_s.chomp
     
     NoMethodError:
       undefined method `[]' for nil
     # ./lib/db/MiqSqlite/MiqSqlite3Table.rb:68:in `decodeSchema'
     # ./lib/db/MiqSqlite/MiqSqlite3Table.rb:59:in `initialize'
     # ./lib/db/MiqSqlite/MiqSqlite3Table.rb:38:in `new'
     # ./lib/db/MiqSqlite/MiqSqlite3Table.rb:38:in `block (2 levels) in each'
     # ./lib/db/MiqSqlite/MiqSqlite3Page.rb:91:in `block in each_cell'
     # ./lib/db/MiqSqlite/MiqSqlite3Page.rb:91:in `each'
     # ./lib/db/MiqSqlite/MiqSqlite3Page.rb:91:in `each_cell'
     # ./lib/db/MiqSqlite/MiqSqlite3Table.rb:37:in `block in each'
     # ./lib/db/MiqSqlite/MiqSqlite3Page.rb:84:in `block in each_child'
     # ./lib/db/MiqSqlite/MiqSqlite3Page.rb:91:in `block in each_cell'
     # ./lib/db/MiqSqlite/MiqSqlite3Page.rb:91:in `each'
     # ./lib/db/MiqSqlite/MiqSqlite3Page.rb:91:in `each_cell'
     # ./lib/db/MiqSqlite/MiqSqlite3Page.rb:83:in `each_child'
     # ./lib/db/MiqSqlite/MiqSqlite3Table.rb:35:in `each'
     # ./lib/db/MiqSqlite/MiqSqlite3Table.rb:11:in `table_names'
     # ./lib/db/MiqSqlite/MiqSqlite3.rb:307:in `table_names'
     # ./spec/db/MiqSqlite/rpmdb_spec.rb:35:in `block (2 levels) in <top (required)>'

Fixes #205