updated functions

[Jugalcody]

Added all possible functions of linked list and matrix..

linked list -

1. create_node(data)----to create a node
2. node_link(a,b)-----to create a link between two given node a and b
3. count_node(head)------- to count the number of nodes link with the given header node
4. display_node(head)------to display linked list whose header node is passed as a parameter

Matrix functions -

1. matrix_add(array1,array2)--------to add two matrix
2. matrix_sub(array1,array2)--------to subtract two matrix
3. matrix_mul(matrix1,matrix2)----------to multiply two matrix
4. matrix_shape(matrix1)---------to get the shape of a matrix
5. matrix_transpose(matrix1)-----------to get the transpose of a given matrix

[extinctsion]

Good. The methods added were helpful