Added lmdb to requirements

requirements_provisional.txt

@@ -1,22 +1,25 @@
 cffi==1.14.1
 cycler==0.10.0
+cachetools==4.1.1
 future==0.18.2
 kaldi-io==0.9.4
 kiwisolver==1.2.0
 llvmlite==0.33.0
 lxml==4.5.2
+lmdb==0.99
 matplotlib==3.3.0
 numba==0.50.1
 numpy==1.19.1
 Pillow==7.2.0
 pycparser==2.20
 pyparsing==2.4.7
 python-dateutil==2.8.1
+python-speech-features==0.6
 resampy==0.2.2
 scipy==1.5.2
 six==1.15.0
 SoundFile==0.10.3.post1
---find-links https://download.pytorch.org/whl/torch_stable.html
-torch==1.6.0+cpu
---find-links https://download.pytorch.org/whl/torch_stable.html
-torchaudio==0.6.0
+speechpy==2.4
+pandas==1.1.1
+#--find-links https://download.pytorch.org/whl/torch_stable.html
+#torch==1.6.0+cpu