Asset range option

While writing tests, I encountered a problem with the number of vests changing over time. I've created a function that works similarly to python's built-in range() function. It works like this:

tt.Asset.Range(tt.Asset.Test(1), tt.Asset.Test(2))

use analogous to:

range(1, 2)

This allowed me to achieve my goal:

assert tt.Asset.Test(2) in tt.Asset.Range(tt.Asset.Test(1), tt.Asset.Test(3))

I also added the option of specifying the upper deviation percentage:

tt.Asset.Range(tt.Asset.Test(1), percentage_range=10) 

the above case should be understood as follows: from tt.Asset.Test(1) to tt.Asset.Test(1) + 10%

@mzebrak, @kmochocki

package/test_tools/__private/asset.py

@@ -11,7 +11,7 @@ import abstractcp as acp
 from test_tools.__private.exceptions import ParseError
 from test_tools.__private.utilities.decimal_converter import DecimalConverter
 
-AssetLimitType = TypeVar("AssetLimitType", bound="AssetBase")  # pylint: disable=invalid-name
+AssetLimitT = TypeVar("AssetLimitT", bound="AssetBase")
 
 
 @total_ordering
@@ -210,8 +210,8 @@ class Asset:
 
         def __init__(
             self,
-            lower_limit: AssetLimitType,
-            upper_limit: Optional[AssetLimitType] = None,
+            lower_limit: AssetLimitT,
+            upper_limit: Optional[AssetLimitT] = None,
             *,
             tolerance: Optional[int] = None,
         ):