No separation in Nemeth braille output between content of neighboring lines in multiline aligned equations

The Nemeth braille rendered by MathCAT from the MathML for these two aligned equations:
results in braille that has no separation between the '5' at the end of the first line and the '3.1x' at the start of the second line:
```
⠼⠦⠨⠲⠲⠭⠬⠢⠢⠽⠀⠨⠅⠀⠼⠢⠒⠨⠂⠭⠤⠴⠨⠶⠀⠨⠅⠀⠤⠼⠂⠨⠂
```
The braille is roughly equivalent to "8.44 x plus 55 y equals **53.1 x** minus 0.7 equals negative 1.1"

_Note the **53.1 x** in the braille output instead of a separation between the two equations._

### Expected output
At a minimum, a space between the two equations is needed:
```
⠼⠦⠨⠲⠲⠭⠬⠢⠢⠽⠀⠨⠅⠀⠼⠢ ⠼⠒⠨⠂⠭⠤⠴⠨⠶⠀⠨⠅⠀⠤⠼⠂⠨⠂
```
Such multiline content is problematic. Unfortunately, it does not appear that Nemeth code has a mechanism for rendering a new line indicator. It would be worth researching if adding "Line 1: " ... "Line 2:", (or similar indication) would be appreciated.

### To reproduce

The LaTeX was:
```tex
\begin{aligned}
8.44x + 55y &= 5\\
3.1x - 0.7 &= -1.1
\end{aligned}
```