refactor attribute and remove TMS from BaseReader init, and remove min/maxzoom from info response

docs/src/migrations/v7_migration.md

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+
+`rio-tiler` version 7.0 introduced [many breaking changes](../release-notes.md). This
+document aims to help with migrating your code to use `rio-tiler` 7.0.
+
+## `SpatialMixin` class and `TMS`
+
+The `SpatialMixin` class, used in `BaseReader` class had numerous breaking changes:
+
+- removed `tms` and `geographic_crs` attributes
+
+- changed `geographic_bounds(self)` from `property` to `method` -> `geographic_bounds(self, geographic_crs: CRS = WGS84_CRS)`
+
+- removed `_dst_geom_in_tms_crs` method
+
+- removed `_minzoom` and `_maxzoom` property
+
+The main change is the removal of the `tms` attribute, which means the `BaseReader` do not have `tms` information, thus the `.tile()` now needs a tms argument:
+
+```python
+# before
+import morecantile
+from rio_tiler.io import Reader
+
+with Reader("cog.tif", tms=morecantile.tms.get("WebMercatorQuad")) as src:
+    _ = src.tile(0, 0, 0)
+
+# now
+with Reader("cog.tif") as src:
+    _ = src.tile(0, 0, 0, tms=morecantile.tms.get("WebMercatorQuad"))
+```
+
+same for the `tile_exists` method
+
+```python
+# before
+import morecantile
+from rio_tiler.io import Reader
+
+with Reader("cog.tif", tms=morecantile.tms.get("WebMercatorQuad")) as src:
+    _ = src.tile_exists(0, 0, 0)
+
+# now
+with Reader("cog.tif") as src:
+    _ = src.tile_exists(0, 0, 0, tms=morecantile.tms.get("WebMercatorQuad"))
+```
+
+By removing the `tms` attribute, we also removed the `min/max zoom` properties. We've added `.get_zooms(tms: TileMatrixSet)` method to the `SpatialMixin` class to allow users to retrieve the zoom information:
+
+```python
+# before
+import morecantile
+from rio_tiler.io import Reader
+
+with Reader("cog.tif", tms=morecantile.tms.get("WebMercatorQuad")) as src:
+    minzoom, maxzoom = src.minzoom, src.maxzoom
+
+# now
+with Reader("cog.tif") as src:
+    minzoom, maxzoom = src.get_zooms(morecantile.tms.get("WebMercatorQuad"))
+```
+
+Same for the `geographic_bounds`, which now needs to be retrieved using the `geographic_bounds(tms: TileMatrixSet)` method (instead of the `.geographic_bounds` property), because we've removed the `geographic_crs` attribute.
+
+```python
+# before
+from rasterio.crs import CRS
+from rio_tiler.io import Reader
+
+with Reader("cog.tif", geographic_crs=CRS.from_epsg(4326)) as src:
+    _ = src.geographic_bounds
+
+# now
+with Reader("cog.tif") as src:
+    _ = src.geographic_bounds(CRS.from_epsg(4326))
+```
+
+
+## `Info()` and Models
+
+- `rio_tiler.models.SpatialInfo` was removed