[package] sqlite3/all: how to use components to mimic findSQLite3 and imported target SQLite::SQLite3

According to CMake documentation https://cmake.org/cmake/help/v3.14/module/FindSQLite3.html:

• namespace of sqlite3 is SQLite (imported target is SQLite::SQLite3)
• we have to use find_package(SQLite3)

conan components doesn’t seem to provide a way to handle this case.

[jgsogo]

This should be the last mile needed fo this transparent integration: https://github.com/conan-io/conan/issues/7254

And then something like

cpp_info.filename = `SQLite3`
cpp_info.names["cmake_find_package"] = `SQLite`
cpp_info.components["all"].names["cmake_find_package"] = `SQLite3`

[SpaceIm]

This issue can be closed, sqlite3 recipe now properly mimics official sqlite3 imported target and module filename.