Enable wrapIdentifier for SQLite .hasTable

[ramos-ph]

Currently, the wrapIdentifier option does not apply for SQLite db.schema.hasTable.

For example, even if we set wrapIdentifier to parse identifiers to snake case, we'd get the following:

db.schema.hasTable('infoBoxes').toString()
> select * from sqlite_master where type = 'table' and name = 'infoBoxes'

This PR fixes this by enabling the wrap for SQLite Compiler:

db.schema.hasTable('infoBoxes').toString()
> select * from sqlite_master where type = 'table' and name = 'info_boxes'

Fix #4898

[OlivierCavadenti]

Can you add tests for this plz ?

[ramos-ph]

Hey, I came across a few bug on the test file:

describe('sqlite only', () => {
  if (!isSQLite(knex)) {
    return Promise.resolve();
  }

This will never work because the if statement runs before the describe which causes knex to be undefined - never returning true on the function output.
I double checked other workflows to make sure it wasn't a problem with my branch.
Should a new issue be considered?

[kibertoad]

Should a new issue be considered?

Yes, please! Could you create one?

[ramos-ph]

Yes, please! Could you create one?

Sure! Leave it to me.

[kibertoad]

@OlivierCavadenti Could you review this?

[kibertoad]

Released in 1.0.1.