Merge provider and core into core (#5774)

* small changes - moving provider inside the core

* uptade readme

* lint

* remove old provider readme

* leftovers

* refactor website examples

* ruff

* fix nox

* relock

* fix fails_to_deliver headers

* fix for tests that have renamed endpoints

* fix discovery

* removed test for renamed endpoint

* fix broken syntax - test_search_financial_attributes

* fix cash/income/balance

* fix derivatives tests

* fix etf tests

* fix news tests

* fix regulators

* black

* wrong test param

* sort equity gainers/losers by percent

* platform markdown generation import

* Hotfix/fix int tests core merge (#5779)

* removing tests on old endpoint

* removing visualization on old endpoint

* fixing equity tests

* fixing examples

* fix news tests

* fix index test

* example

* add comments

* example

---------

Co-authored-by: Diogo Sousa <montezdesousa@gmail.com>

---------

Co-authored-by: montezdesousa <79287829+montezdesousa@users.noreply.github.com>
Co-authored-by: Diogo Sousa <montezdesousa@gmail.com>
Co-authored-by: Danglewood <85772166+deeleeramone@users.noreply.github.com>
Co-authored-by: Pratyush Shukla <ps4534@nyu.edu>

openbb_platform/extensions/charting/integration/test_charting_python.py

@@ -78,32 +78,6 @@ def test_chart_equity_fundamental_multiples(params, obb):
     assert isinstance(result.chart.fig, OpenBBFigure)
 
 
-@pytest.mark.parametrize(
-    "params",
-    [
-        (
-            {
-                "provider": "fmp",
-                "symbols": "AAPL",
-                "limit": 20,
-                "chart": "True",
-            }
-        ),
-    ],
-)
-@pytest.mark.integration
-def test_chart_equity_news(params, obb):
-    """Test chart equity news."""
-    params = {p: v for p, v in params.items() if v}
-
-    result = obb.equity.news(**params)
-    assert result
-    assert isinstance(result, OBBject)
-    assert len(result.results) > 0
-    assert result.chart.content
-    assert isinstance(result.chart.fig, OpenBBFigure)
-
-
 @pytest.mark.parametrize(
     "params",
     [