Temp aliases

Simplifies naming convention of miniseed temperatures.

Old behavior:

minute: UK(1-4)

second: LK(1-4)

New behavior(similar to a regular channel name such as H, E, Z, etc.):

minute: T(1-4)

second: T(1-4)

This would be helpful for new users who will now be able to treat these channels like an ordinary element(H, E, Z, etc.).

Also useful for further progress writing miniseed. This allows temperatures to be included in filtering steps alongside geomagnetic data instead of another method(https://code.usgs.gov/ghsc/geomag/geomag-algorithms/-/blob/master/geomagio/processing/obsrio.py#L270)

test/edge_test/SNCL_test.py

@@ -102,6 +102,38 @@ def test_element():
         ).element
         == "U_Sat"
     )
+    assert (
+        SNCL(
+            station="BOU",
+            channel="UK1",
+            location="R0",
+        ).element
+        == "T1"
+    )
+    assert (
+        SNCL(
+            station="BOU",
+            channel="UK2",
+            location="R0",
+        ).element
+        == "T2"
+    )
+    assert (
+        SNCL(
+            station="BOU",
+            channel="UK3",
+            location="R0",
+        ).element
+        == "T3"
+    )
+    assert (
+        SNCL(
+            station="BOU",
+            channel="UK4",
+            location="R0",
+        ).element
+        == "T4"
+    )
 
 
 def test_get_channel():
@@ -161,6 +193,10 @@ def test_get_channel():
     assert (
         get_channel(element="UK1.R0", interval="minute", data_type="variation") == "UK1"
     )
+    assert get_channel(element="T1", interval="minute", data_type="variation") == "UK1"
+    assert get_channel(element="T2", interval="minute", data_type="variation") == "UK2"
+    assert get_channel(element="T3", interval="minute", data_type="variation") == "UK3"
+    assert get_channel(element="T4", interval="minute", data_type="variation") == "UK4"
 
 
 def test_get_location():
@@ -197,6 +233,9 @@ def test_get_sncl():
     assert SNCL.get_sncl(
         station="BOU", data_type="A0", interval="second", element="H"
     ) == SNCL(station="BOU", network="NT", channel="LFH", location="A0")
+    assert SNCL.get_sncl(
+        station="BOU", data_type="variation", interval="second", element="T1"
+    ) == SNCL(station="BOU", network="NT", channel="LK1", location="R0")
 
 
 def test_interval():
@@ -241,6 +280,22 @@ def test_interval():
         ).interval
         == "day"
     )
+    assert (
+        SNCL(
+            station="BOU",
+            channel="UK1",
+            location="R0",
+        ).interval
+        == "minute"
+    )
+    assert (
+        SNCL(
+            station="BOU",
+            channel="LK1",
+            location="R0",
+        ).interval
+        == "second"
+    )
 
 
 def test_parse_sncl():